RARE Telefunken ECC803S/ECC83/E83CC EAST GERMANY BOGEN AMP Tube No microphonics
ECC 83 12AX7 ECC83 ECC803S. BOGEN AMP Tested - No microphonics. Tubes TESTED AND sounded good in my BOGEM AMP! No microphonics! halo getter with heavy duty support rod. O Getter Tube. Hickok Military TV-7/u Tube Testers!