Tube tested from : ECC88 position by Amplitrex 1000.
Item Tag: 6922
NOS TESLA 6922 E88CC MATCHED PAIR GOLD-PIN RARE GREY PLATES AND SHIELD TUBES
Pair of TESLA 6922 | 6DJ8 | ECC88 | CV2492 | E88CC | 7308 MADE IN The Czech Republic. They were Zearix labeled for marketing in England during the 60’s. Highest Grade Gold Pin Construction with O Getter and Grey Shield. Top Quality Dual Triode Preamp Tubes. Amplitrex Tested