PWM pedal

[501]

Hey everybody. I've been looking around here and reading posts and I finally decided to join.
Anyway, I tried to breadboard the beginner's project on this forum. I didn't have the right components and it made some
wierd distorted crunch with no sustain, and I had to strum so hard that I was afraid of breaking my strings. So I took it apart and moved on.
I now want to make the PWM that I found about 2/3 the way down on this page: http://www.geocities.com/tpe123/folkurban/fuzz/snippets.html
I am pretty sure I could build it if I order the right components. I have found the 40106 Schmitt Trigger thing (must be some kind of oscillator),
but I haven't found the "386D JRC" IC in the schematic. I was wondering if anybody could help me out with this. My thought is that it is just some
kind of op-amp chip, but I'm still not sure about it. I was also wondering if anybody has built this thing yet and could tell me if it works or not.
All help is greatly appreciated.
Thanks,
501

[dano12]

Hi 501, welcome to the board.

The JRC386D referenced is pretty much equivalent to the NJM386D you can find here: http://www.smallbearelec.com/Detail.bok?no=207 or here: http://www.mouser.com/Search/ProductDetail.aspx?qs=Q%2f2SSTfRgqEmrzu4DuzU9g%3d%3d

The JRC part stands for Japan Radio Corporation which changed its name to NJM Corporation a while ago. That's why they are all NJM parts now.

Good luck with the project!

[SonicVI]

You don't have to use the 386, you could use any opamp setup for a lot of gain.     I breadboarded it and it's a cool sounding circuit with lots of room for tweaking and additions.

[501]

cool. Thanks 
I think I can get it from here.