7660 Filtering Question

Frequently asked questions regarding powering your pedal.

7660 Filtering Question

Postby Jaxn » 21 Sep 2011, 01:51

I accidentally ordered a bunch of 7660's a few months ago and now realise they are not the 7660S version that allows the frequency to be boosted above the audible spectrum.

I've tried all i can think of to filter out the 10khz oscillator that bleeds through. Im using the 7660 to get +9V & -9V. Caps from power rails to ground with and without a small series resistance doesn't seem to have an effect. Ive even taken it off the bread board onto vero to rule that out.
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Re: 7660 Filtering Question

Postby reneshelle » 21 Sep 2011, 16:18

The easy way. Buy other chips.

I've tried using them as well, and I've found that it's all about how you use them. Search around a bit and I'm sure you be wiser. I've found that even wires running close by can produce the sound...
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