Lecson AC1 preamp - need a PCB layout
I'm currently working on one of these rather, how shall we put it, unconventional preamps !
I have some useful service information but I'm chasing down a fault with the FET switches of which there's quite a few !
Does anyone know where I might just find the PCB component layout details ?
Some lettering is visible on the board ( test points I think ) but most of it seems to have faded badly
THANKS
Andy
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