5881 is a beam power pentode with a maximum plate dissipation of 23W in the classical short bulb. It is very similar to the 6L6 sound but with less power. It can be used in any 6L6 amplifier.
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Base: OCTAL
Uf = 6,3 V
If = 0,9 A
Typical Characteristics: Class A1:
Single tube Push-Pull
Ua = 250 270 V
Ug2 = 250 270 V
Ug1 = -14 -17,5 V
Ia = 63 134 mA
Ig2 = 4,3 11 mA
Ra = 2,5 - kΩ
Ra-a = - 5 kΩ
N = 6,7 17,5 W
Limiting Values:
Triode Pentode
Ua = 450 500 V
Ug2 = 450 450 V
Wa = 26 23 W
Grid No 1 Circuit Resistance
Fixed Bias 0,1 MΩ
Self Bias 0,5 MΩ
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