General Electric GE 6688 Vacuum Tube Valve NOS-Testing RCA RC2 I am playing them as

I am playing them as I write in my Alan Eaton single-ended 45 amplifier with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

great flashing

new in box GE 1821A / Z-1879A is still sealed in its plastic baggie

terrific flashing and GJ MVWV date codes

These three Sylvania 15CW5 / PL84 tubes tested as good on our Paul Hart-calibrated TV7/U

General Electric GE 6688 Vacuum Tube Valve NOS-Testing RCA RC2 I am playing them asThis GE 6688 tube tested 110% on our Jackson 648 Mutual Conductance tester. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONONIAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE WILL NO LONGER SHIP TO GERMAN ADDRESSES FROM JUNE 1, 2022. 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