LOT OF 2 ZENITH 14J7 LOKTAL TRIODE HEPTODE VACUUM TUBES FOR OLD RADIOS TEST GOOD

1 Or More NOS Tungsram ECH21 Hungary 1970S Triode Heptode Audio Vacuum Tubes

Pair NOS 14J7 Sylvania Loctal 8 Triode Heptode Frequency Converter Radio Audio

One SYLVANIA 7J7 Tube NOS NIB Triode/Heptode Converter Strong TV-7 Test Results

1x 6I 1P TRIODE HEPTODE TUBES ECH81 6AJ8 NOS 6И1П

Philco 6K8G Converter Tube – Vintage Triode Heptode Made in U.S.A.

2 NOS RCA 7C5 Vacuum Tubes - 1970's Vintage 12-Watt Loktal Style Audio Pentodes

2x 6I 1P TRIODE HEPTODE TUBES ECH81 6AJ8 NO