Name: 6N21B;
Type: Double triode, hi-durable;
Application: LF voltage amplification;
Cathode type: oxide, indirect heating;
Envelope: glass, miniature;
Mass, g: 4,5;
Filament voltage, V: 6,3;
Filament current, A: 0,36-0,43;
Anode voltage, V: 200;
Anode current, A: 0,0035;
Anode power, W: 1;
Steepness, mA/V: 2,6-4,0;
Reverse grid current, uA: 0,2;
Microphnic noise, mV: 15;
Gain: 65-100;
Socket type flexible;
Lifetime: more 2000 hours.
