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Old 6th Apr 2012, 9:50 pm   #30
Ed_Dinning
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Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,172
Default Re: JLH Class 'A' Amplifier

Hi Dave, let me know what you are looking for in the way of heatsinks, I may have something suitable.

It sounds as if the transistors have been re-marked; however, a lot of 2N3055's are re-marked higher power fall-outs and may work fine. This was the way of getting rid of power transisors that were not up to a much higher spec.
Try them and see, but keep close control on power and monitor device temperatures.

Ed
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