madtheory wrote:Dirt/ dust in the relay makes it switch intermittently. Sounds just like clipping.
madtheory wrote:Cal info? Looking at the contents, my guess would be "Check Points for repair" and the part about Test Tones.
madtheory wrote:Power supply? Here you go:
Steve Jones wrote:Another really useful piece of test gear for situations like this is a capacitor decoupled audio signal probe. Quite easy to build, plenty of schematics on the web.
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