Sylvania NOS 6HM5 6HA5 EC900 Vacuum Tube Tested

Two Excellent GE 6HM5 6HA5 Tubes NOS NIB Match Construction TV-7 Results

AMPEREX 6HA5 6HM5 EC900 TUBE NOS NIB ABSOLUTE NEW MINT SINGLE

AMPEREX 6HA5 6HM6 TUBE MATCH PAIR MADE IN YUGOSLAVIA TESTS NOS

229 LOT OF 6 GE 5Y3GT Vacuum TUBES

3 Fisher 500 800 400 EC900 6HA5 amplifier receiver preamplifier a c tubes # 70

5534 LOT OF 5 MARCONI 6V6GT CANADA Vacuum TUBES

Lot of (4) 6BQ5 EL84 Sylvania Vacuum Tubes - Tested Good