1 x TESTED* ECF82 TESLA Triode-Pentode TUBE 6U8 1973y NEW

2 X NOS Telam HQ ECF82 6U8 V Strong Test 1960S Triode Pentode Vacuum Tubes

4 NOS Tested Sylvania 6AW8 Triode Pentode Vacuum Tubes Scott Dynaco Audio Amp

1 x ECF82 TESLA TESTED 1967y TUBE TRIODE-PENTODE 6U8 6KD8 6F2 6GH8

Lot 3 6CQ8 Triode Pentode Vacuum Tubes NOS RCA Sylvania GE Ham Radio Amp

(1) Tested RCA 6U8A Tube with Box Code BC Triode Pentode Converter 6U8 A Tube

1 x ECF82 TUNGSRAM TESTED 1972y TUBE TRIODE-PENTODE 6U8 6KD8 6F2 6GH8

1 x TESTED* ECF82 TESLA Triode-Pentode TUBE 6U8 1970y NEW