In Reply to: Re: LM350 regulated DC PSU & HUM problem posted by Ewing on August 20, 2003 at 18:21:41:
Yes, there is such a thing. Consider that your music signal passes through this pot just as it passes through the cathode resistor and bypass cap. If the pot is noisy, tracks poorly or is cheaply made, it will have an effect on the sound and could be frustrating to use if it injects noise into the circuit or is difficult to tune properly. $19 seems a *bit* high to pay, but on the other hand 100 ohm pots are not easy to find at your local electronics shop, so you were fortunate to find some. Glad it did the trick!
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Follow Ups
- Re: LM350 regulated DC PSU & HUM problem - groverg 23:26:30 08/20/03 (1)
- What would be the better hum pots? - HKL 10:00:07 08/21/03 (0)