Matched Pair Toshiba M3624 6DJ8 ECC88 Vacuum Tubes O Getters.
Toshiba M3624 /ECC88/6DJ8 Tests strong
Toshiba M3624 / ECC88 / 6DJ8 Both sections test strong but not super balanced.
(2) Toshiba M3624 6DJ8 ECC88 Vacuum Tubes O Getters Test Strong TV-7B/U
(2) Toshiba M3624 6DJ8 ECC88 Vacuum Tubes with O Getters.
Matched Balanced Toshiba M3624 6DJ8 ECC88 Tubes O Getters Test NOS TV-7BU
Matched Balanced Toshiba M3624 6DJ8 ECC88 Vacuum Tubes | O Getters. Both tubes test balanced at 90/86 with 62 being the minimum score for a good tube (with 65% life remaining).