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RE: Pi filter resistors

They are 1000 ohm 1 watt, and supply the voltage amplifier only. The driver circuit has its own power supply leg.

I would take a look at the noise in that supply prior to changing out the HEXFREDs (on the scope its a straight line...). Again, the cross mode rejection of the circuit is excellent so you're not going to win much by changing out the rectifiers.

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  • RE: Pi filter resistors - Ralph 11:15:50 01/05/16 (0)


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