The 6P43P-E output pentode is designed for amplification of low-frequency power. The 6P43P-E pentode is miniature device enclosed in glass bulb and provided with a nine-pin base and an indirectly heated oxide-coated cathode. Near equivalent of 6BQ5 / EL86 / EL84.
- Name: 6P43P-E;
- Type: pentode;
- Cathode type: oxide,indirect heating;
- Envelope: glass, miniature;
- Mass,g: 20;
- Filament voltage, V: 6,3;
- Filament current, A: 0.57-0.68;
- Anode voltage, V: 185;
- Anode current, A: 0.036-0.054;
- Anode power, W: 12;
- Grid2 voltage, V: 185;
- Steepness, mA/V: 6.0-9.0;
- Reverse grid current, uA: 1;
- Socket type: rsh8.



The difference from EL84 can be seen here :

EL 84 Graph

6P43P-E Graph