Pair of Siemens (GE lbl) 6922 E88CC NOS NIB 1964 Gold Pin Vacuum Tubes
£259.68
Gm matched to about 12% difference and tested quiet on the Amplitrex AT1000. Small signal (i.e. 12AX7) tubes are generally checked for noise and microphonics; power tubes (i.e. 6L6) are usually not.
