Ring Modulators

jrc4558 · May 22, 2004, 01:41:10 PM

Hey everybody!
I wanted to ask all of you to recommend me a good DIY Ring Modulator.
I already built the one designed by Craig Anderton and now am looking for something other than that, something more complicated possibly.

So thank you! Any input is appreciated.

ExpAnonColin · May 22, 2004, 03:27:36 PM

I have a few you could try at http://www.experimentalistsanonymous.com/diy/Schematics/ . They're all over. None of those have good layouts, though, sorry.

-Colin

moosapotamus · May 22, 2004, 06:34:45 PM

Gonkulator?

jrc4558 · May 23, 2004, 12:22:55 AM

Thanks, the archive is good! Douh, I mean GOOD!!!

Btw, Moosapotamus, where have you seem the schemmo for Gonkulator Modulator? Got one to spare?

Thnx again.

Zero the hero · May 23, 2004, 04:25:41 AM

There was an interesting topic about 1496 gonkulator...
http://www.diystompboxes.com/sboxforum/viewtopic.php?t=20488

moosapotamus · May 23, 2004, 10:28:32 AM

Yeah, that's the thread. Looks like Dan's V2 scheme is still there, too (near the end of the thread). Don't know if anyone has built one yet, tho.

~ Charlie

PB Wilson · May 23, 2004, 01:54:28 PM

Constantin and Charlie- What are your thoughts on the EPFM Ring Mod?

Also, I've got most of the parts to build one up, but had a question or two about part substitutions. I don't have a .05uf cap, so should I use a .047, or a .047 paralleled with a .0022? Does it matter that much? The same goes for the 50uf cap. Can I just use a 47uf, or should I use a 47uf paralleled with a 2.2uf? Thanks for the help.

Zero the hero · May 23, 2004, 05:04:55 PM

Charlie, I was drawing a layout with photoshop as usual but I never had time to finish it. It seems that too much working and studying is overwelming my mind...
I soon forgot to finish it because I havo so many projects I'm working on. I'll post the PCB as soon as I'll finish it, with all the mods I can find.
And all the people should wait...

By the time check the balanced modulator by Paia. Chips should be available somewhere.

About parts substtitution, I think that you can put a 47uF cap instead of the 50uF with no difference. Remember that all these components have bigger or smaller tolerance! I don't think that these small variations on parts value make a great difference.
But maybe I'm wrong...

marrstians · May 24, 2004, 12:06:54 AM

i built the epfm's ring mod and it's pretty much unusable... it has so much carrier noise in the circuit that you need a gate or something to get it to sound ok... but by that time you could find a better one out there... just my op....

ExpAnonColin · May 24, 2004, 12:49:52 AM

Quote from: marrstiansi built the epfm's ring mod and it's pretty much unusable... it has so much carrier noise in the circuit that you need a gate or something to get it to sound ok... but by that time you could find a better one out there... just my op....

Did you set the trimpot properly? I know there was supposed to be one in there. All ring mods need a lot of trim-tweaking.

-Colin

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Ring Modulators