JAN CKR 6B4G. Th ese tubes were tested in my Military Hickok TV7/A tester to make sure these were great. All the tests were excellent. These are the very rare early black glass version. These are know for being amazing sounding 6B4G tubes.
Item Tag: 6B4G
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2 NOS NIB Matched Tung-Sol JAN CTL 6B4G Black Glass Tubes
JAN CTL 6B4G. Th ese tubes were tested in my Military Hickok TV7/A tester to make sure these were great. All the tests were excellent. Both of these tubes were made in the USA, by Tung-Sol, in the 1940’s.
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RCA 6B4G Dual Flat Plate Power Vacuum Tube Amplitrex Tested New In Box 120%
Tested strong at 60gm (38 is minimum) using a professionally calibrated TV7U tube tester (as photographed)
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(3) NOS 6B4G AUDIO POWER AMPLIFIER TUBES – HOLLAND – MATCHED – TV7 TESTED
Three new old stock unbranded 6B4G tubes. Made in HOLLAND. Tested on military TV7 tube tester. With 38 being minimum reading for a good tube , these tubes read 78 , 80 , and 80. Will be shipped in new generic tube cartons. FREE U.S. SHIPPING ! Thank you for looking !!!