Tubes: Transmitting & Receiving Starting with 4

Product Details:
4CX250B (amp) Amperex. New - unused.

Product Details:
4CX250B(H) made in Holland. New - unused.

Product Details:
Amperex 4−1000A, New, Unused

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4−1000A, Pulled, Satisfaction Guaranteed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
8904 Eimac Transmitting Tube

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−125A, Eimac, Used

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4D32 Transmitting Tube, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−125A, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−250, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Amperex Tube, Made in France, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Eimac 4−250A Tube, New, Unused

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Penta Labs, New, original 4−250A, 5D22, New, unused, guaranteed, (Penta Labs − when made in USA)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Siemens. RS−1002A. Equivalent to 4−400A. New old stock.

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Eimac JAN−CIN 8438/4−400A, New, unused, 30−day warranty

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Jan 4−400A, Eimac, DC−6007, S/N: MO−9511, Best choice for Johnson Viking 500

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−400AP, Pulled

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4−400A Tube, Guaranteed 30 days, (Used time, pulls)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−400B, Amperex, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4−65A, Eimac, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4−65/U, Eimac, Used

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4−65A, Amperex, Used

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4−G−S, Majestic, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4AU6, Various brands*, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4AV6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4B32, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, Solid State, 4B32 Replacement

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4B32, United Electronics

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BA6, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BC5, Westinghouse

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BC8, Various Brands

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BE6, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BL8 / XCF80

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BN6, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BQ7A / 4BZ7, Sylvania

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BQ7A, RCA, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BS8, Westinghouse

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BU8, RCA

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BU8 / 4GS8, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BX8, Westinghouse

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BZ6 / 4JH6, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4BZ7, Various brands*, Trigon

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4C33

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4C35, Sylvania, Pull

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Thyratron, various brands

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CB6, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CN16A, Eimac Tube with Socket, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CS6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Eimac Vacuum Tube. Looks new, but has been installed. 4DF−251 S.N. Box matches S.N. Sold as−is.

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Eimac tube, older silver plated model. Possibly used − definitely tried out and guaranteed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CX1500A, Used, guaranteed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CX1500B / 8660, Eimac, New, Dates in the 1980's

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CX1500B, Eimac, Silver plated, New, some oxidation, In original boxes

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CX2000A, Eimac, Dented, Sold As−Is

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CX250B(H) made in Holland. New − unused.

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 8245 / 4CX250K, New Eimac in can

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX3000A, Eimac, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX300A, Pulled

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 8167/4CX300A, Eimac in Can, New in can / box

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX300Y, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX350A, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX350F, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
8904 Eimac Transmitting Tube

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX350, Pulled

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX5000R, Eimac / Analogic, New, Surplus

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX5000R−P, Removed, Good

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4CX500F, Pulled

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Eimac 4CX600JA transmitting tube, very low hours, guaranteed satisfaction

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Power Tube, 4CX80V0A−SV, Svetlana

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4CY5, Westinghouse

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
PL−4D21, Penta Laboratories

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4D32 Transmitting Tube, New

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4DC6, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4DE6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4DK6, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4DT6A, GE, Special (bulk)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4E27, Used

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4EH7 / LF183, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4EH7 / LF184, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4ES4, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4ES8, Argentina

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4EW6, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4EW6, Haltron

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GJ7 / XCF801, Various brands*, Zenith (bulk)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GK5, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GK5, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GM6, Various brands*, Haltron

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GS7, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GS8, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GX7, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4GZ5, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HA5 / PC900, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HA7 / 4HC7, RCA Sylvania

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HK5, Sylvania

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HM5 / 4HA5, RCA

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HM6, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HQ5, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HS8, Various brands*, GE

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4HT6, RCA

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J31, Raytheon

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J42, Western Electric, Magnetron

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J43, Raytheon

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J44, Raytheon

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J50 JAN−CBGD, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4J52, Raytheon

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JC6A, Various brands*, Sylvania

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JC6A, GE (bulk)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JD6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JD6, Sylvania (bulk)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JD6, Westinghouse (bulk)

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4JH6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4KE6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4KE8, GE RCA

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4KN8, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4KT6, Various brands*

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4LJ8, GE RCA

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4LU6, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4MK8, Sylvania

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4M−P12, Various brands*, New, Boxed

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4MP26, International

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4PR−400A, Eimac, Slightly used

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4PR60A JAN−CIM, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4RHH8 / 4KN8, Dumont

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4S, Majestic

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4X150A 7034, Eimac and other brands

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
Transmitting Tube, 4X150A, Pulled

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4X150D, RCA and other brands, 26.5v filament

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4X150G / 8172, Eimac

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.

Product Details:
4X500A RCA, New, old stock

For a $6 up charge ($5 for 20 tubes or more of same number), individual Roe Tester V10 printouts with curves will be included with individual tubes. This test takes about 10 minutes for each test. The calibrated ROE Tester is the finest test tube testing system available. It will document every operating parameter of the subject tube.