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Old 6th Feb 2017, 8:26 pm   #4
Colourstar
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Join Date: Feb 2006
Location: Ilkeston, Derbyshire, UK.
Posts: 1,398
Default Re: RGD RP231 Transistor record player

Some very good pointers there. As an initial step I will get the magnifier out and check the print, as the pcb isn't great quality. Those two pots may be under suspicion too.

Could the oddly high figure on the emitter of the BC154 be caused by the biasing being wrong, with the circuit being designed for an OC75? That may need looking at, but I need to get some semblance of normality to the general readings first I think.

Steve
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