RCA Number Type 38 #38 Vacuum Tube Valve Engraved Base Shoulder Shape NOS NIB 1st Quarter BW01 These four US-made 7A7 tubes

These four US-made 7A7 tubes tested as follows on our Paul Hart-calibrated TV7/U where minimum (65%) is 44 and 100% is 68:

From left to right

3 rather than 7

Transconductance measured (From left to right): 41

There were no shorts or gas

RCA Number Type 38 #38 Vacuum Tube Valve Engraved Base Shoulder Shape NOS NIB 1st Quarter BW01 These four US-made 7A7 tubesThis new old stock, new in box RCA number type #38 tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY