Item Tag: ≤ 220 V, 90 V typical

JJ Electronic 6922 / E88CC. This tube is Apex® Performance Tested. Grid Circuit Resistance (Rg) 1 MΩ. Heater to cathode resistance (Rk/f) 20 kΩ. Internal Resistance (Ri) 2.6 kΩ. Not what you’re looking for?.