Super Silvertone 25A6 25A6G 25A6GT Vacuum Tube Valve NOS NIB 6H6 Matched Quad beefy black plates: three mica

beefy black plates: three mica spacers for improved mechanical stability and low microphonics

new in box US-made 12D4 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing matched pair of milspec/industrial Tung-Sol 6098 / 6AR6WA output tubes was tested on Paul Hart-calibrated TV7/U for shorts

68 and 82 where minimum (65%) is 32 and 100% is 49

Super Silvertone 25A6 25A6G 25A6GT Vacuum Tube Valve NOS NIB 6H6 Matched Quad beefy black plates: three micaThis new old stock, new in box Super Silvertone 25A6GT G tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONONIAN PACKAGING REGULATIONS COMING INTO EFFECT IN GERMANY 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