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RE: Need some trouble shooting advice please......

I thought you were referring to hum at the output of a power amp, not a preamp. What's the maximum sensitivity of your scope (V/div) with a 1:1 probe? Mine goes to 5mV/div, but also has a X10 multiplier switch for 0.5mV/div. Sometimes even that isn't enough to see preamp hum. One of these days I'll build a low noise SS preamp with 30dB gain for this use.


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  • RE: Need some trouble shooting advice please...... - Triode_Kingdom 20:37:47 10/09/16 (0)
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