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Marshall 9004 Rackmount Preamp Negative Voltage Supply
Hi, I have a Marshall 9004 rackmount preamp here (schematic attached) which is not producing sound output, apparently on account of the negative voltage rail...
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Positive/Negative Power Supply, schem from online accurate?
Found this schem online for producing +9V and -9V from a 555 timer, have a question: For each output, are Caps C5 & C6 correctly located in series...