Based on a tried, tested and reliable design using 2N3055 transistors and having relay soft start delay circuitry, current limiting for loudspeaker protection and quiescent current adjustment with the help of two LEDs...Electronics > Circuit Components > Printed Circuit Boards > Development Boards1033KT1033KTView OfferQuasar Electronics Limitedhttps://quasarelectronics.co.uk/Item/smart-kit-1033-60-watt-mono-hi-fi-audio-amplifier
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This is a very well designed audio power amplifier that will give you true hi-fi quality suitable for the most demanding of constructors. The circuit uses two 2N3055 power transistors incorporates electronic protection for the output.
It combines well with kits 1032KT, 3089, 1016 and 1050. It is supplied complete with a large heatsink.