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Valve Radio and Audio Repair Handbook by CHAS MILLER

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Table 6

Power output triodes

MakeTypeBaseFil. voltsFil. ampsAnode voltsImpedanceSlope(mA/V)Bias voltsAnode current (mA)Bias res. (ohms)Output (mW)Optimum load (ohms)
BrimarPA15B154.01.1200150012.0− 9.050.026012504 000
Cossor215P4B42.00.151504 0002.25− 7.510.01509 000
220P4B42.00.21504 0002.25− 7.511.01909 000
220PA4B42.00.21504 0004.0− 4.510.01809 000
230XP4B42.00.315015003.0− 18.022.04503 500
2P4B42.02.025011507.0− 22.040.03 000
2XP4B42.02.03009007.0− 36.050.04 000
41MP5B154.01.020025007.5− 7.524.032012503 000
41MXPSB154.01.020015007.5− 12.540.03002 0002 000
4XP4B44.01.02509007.0− 28.548.06003 0003 000
DP7B1816.00.252002 8006.0− 7.525.03003 500
402P7B1840.00.220013307.5− 9.530.03202 500
DarioTB0524B42.00.1515042001.2− 18.07.015011000
TB0624B42.0 ...

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