General Electric GE 11BT11 Vacuum Tube Valve NOS NIB Type Sextal T18 They are not suitable for

They are not suitable for guitar amp application as they are somewhat microphonic

Two are GE and two are Sylvania

This lot of four Emerson coated glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

There were made by Sovtek's predecessor during The Cold War and

This new old stock-testing Silvertone round plate type 56 triode was tested on our Paul Hart-calibrated TV7 for shorts

General Electric GE 11BT11 Vacuum Tube Valve NOS NIB Type Sextal T18 They are not suitable forThis GE 11BT11 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 HAVE IT. PLEASE ALSO SEE OUT ETSY