What does an oscillation circuit look like?

jfrey · Post by **jfrey** » Mon Jan 31, 2011 11:54 am

In the title. Basically I'm trying to figure out how you add a tweakable oscillation effect to a pedal.

culturejam · Post by **culturejam** » Mon Jan 31, 2011 11:57 am

You mean like a feedback looper?

It's basically just a pot that feeds the output signal back into the input. Turning the pot controls how much of the signal is fed back.

jfrey · Post by **jfrey** » Mon Jan 31, 2011 12:00 pm

I mean kind of like the Hyperion 2 has.

culturejam · Post by **culturejam** » Mon Jan 31, 2011 12:05 pm

I'm not exactly sure how it works on the Hyperion 2. Maybe we could ask Devi?

But it doesn't seem like it could be too complicated as the description says the only difference from v1 is the Oscillation control. So I'm assuming it's literally just a pot between input and output.

Teej212 · Post by **Teej212** » Mon Jan 31, 2011 3:39 pm

http://www.shoegazers.org/viewtopic.php?f=192&t=10148

thats how its done in the hyperion

tuffteef · Post by **tuffteef** » Mon Jan 31, 2011 3:46 pm

easy as pie

jfrey · Post by **jfrey** » Mon Jan 31, 2011 4:19 pm

Nice. Thank you.

Teej212 · Post by **Teej212** » Mon Jan 31, 2011 5:17 pm

but if you want feedback in any circuit, just jumper the input to the output.

jfrey · Post by **jfrey** » Mon Jan 31, 2011 5:23 pm

Teej212 wrote:but if you want feedback in any circuit, just jumper the input to the output.

What does "jumper" mean? I'm a noob.

Teej212 · Post by **Teej212** » Mon Jan 31, 2011 5:40 pm

Put a wire that connects them

jfrey · Post by **jfrey** » Mon Jan 31, 2011 5:42 pm

Teej212 wrote:Put a wire that connects them

That's it? So like

IN ------------------------------- Out
\\------------CIRCUIT-------------//

Teej212 · Post by **Teej212** » Mon Jan 31, 2011 5:56 pm

Yup. Simple feedback loop. Put a pot in there for more noises.

jfrey · Post by **jfrey** » Wed Feb 09, 2011 3:36 pm

So would I do it like this:

Or this:

: oscillate.JPG (10.59 KiB) Viewed 2323 times

And is it just one wire going from the IN and Out? Or are both (terminals? lugs?) used?

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What does an oscillation circuit look like?

What does an oscillation circuit look like?

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