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RE: Music Reference RM-9

I'm afraid I have no memory of the zener diode part numbers or voltage values (if I ever knew them), but it's easy to place a voltage across the zeners with a current limiting resistor to measure what they are. I would be careful about blaming the zener diodes for your problem until you've assessed the other components that comprise the bias network. Zeners are typically very rugged unless asked to pass way too much current.

Kevin Carter
K&K Audio
www.kandkaudio.com


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