Preamps
The anode limit dissipation power of beam power tetrode 5881 is 23W. It is amplified by A1, AB1, and AB2 in the audio amplifier and can also be used in voltage stabilization circuits. 5881 is similar to 6L6G, 6L6GA, 6L6GB, 6L6GC, etc. and can be used interchangeably.
Push-Pull AB1 Amplifier Transistor Connection (Fixed Bias)
Ua.g2(0)........................400V
-Ug1 (approx.).................45 V
Well..................................4,000
üg (g1-g1.pk)......................90V
Ia+g2...................................... 65 mA
Ia (maximum signal)................................130 mA
Pouting.................................13.3 W
Dtot........................4.4%