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Old 24th Nov 2021, 9:05 am   #8
barrymagrec
Octode
 
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,552
Default Re: Wireless World April 1969 Amplifier Kit. 2N3055 Transistors.

I built this amplifier originally with 2S025 transistors to try out and it worked so well that I built a neater stereo version with 2N3055's which also worked well and was in service for several years.

If the gain of the output transistors is too low the distortion will increase rapidly, however.

Don't skimp on heatsinks, it gets very hot, over 35 watt dissipation per channel at all times.
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