12B4A, Various brands* Vacuum Tube

Roe Tester V10

12B4A, Various brands* Vacuum Tube

Part Number:
(TUR) 12B4A

Product Details:
12B4A, 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.

NOTE: Sweep Tubes are not warranted in any way due to wide and variable operating conditions.


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Tubes: Starting with "7" to "99" - Page 2: 11AF9 to 12Z3

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