2 X NOS Philips Mullard ECF80 6BL8 1960S Triode Pentode Audio Vacuum Tube

1 Or More NOS Siemens EL41 6CK5 Test V Strong 1960S Pentode Vacuum Tubes

1 x ECF82 RFT WF Foil Getter Triode-Pentode TUBE 6U8 TESTED NEW

Sleeve 5 x NOS Sealed Telefunken PCF80 Diamond Radio Triode Pentode Vacuum Tubes

1 x ECF82 TESLA STRONG Foil Getter `1963y, Triode-Pentode TUBE 6U8 TESTED

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

Pair Zenith 6KD8 6U8 NOS Vacuum Tubes Triode Pentode Mcintosh Scott Fisher

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