10 Watt Power Amplifier 2
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Transistors:
Tr1 BCY70 (or BC 182L or BC212L or BC214L) Tr2/3/4 BFY50/51 Tr5 BFX88 Tr6/7 2N3055 |
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Risk of instability if no input connected. When testing, connect R (about 3k3).
Needs well smoothed power supply of about 20 to 30 volts. Peak power is well over 10 Watts.
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The table below shows the approximate voltages to be expected when using a 24v
supply and with the variable resistor set to give a current of about 40mA in the output stage.
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Circuit diagram : Component Side
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Circuit diagram : Copper Side
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Acknowledgements : The 10W amplifier is taken from "Transistor Audio and Radio Circuits" published by Mullard.
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