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Hi there, I have an old trace elliot keyboard amp and the preamp stage has gone ka-blam I really need a circuit diagram for this but have trawled the internet to no avail. Was wondering if anyone out there can point me in the right direction or tell me what the z1 and z2 component part number are as I have no idea what these zenner diodes could be as they are unreadable. Any advise would be appreciated.
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