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My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 6:39 pm
by colossus
As the title says...

I just got one of these from a member here and I absolutely love it, but I was def excited for oscillation possibilities that I've read about/seen clips of on youtube. Even with my dwell and decay cranked, still no oscillation :idk:

Anyone else have this issue? Dwell also seems REALLY subtle. Is this par for the course with this pedal? I totally love it but it's def not as "soupy" as I was kinda hoping for.

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 6:40 pm
by 01010111
I've heard of any self-oscillating Ghost Echoes? Mine never got too crazy.


edit: I've never heard of...

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 7:02 pm
by Invisible Man
I didn't think these oscillated...I was pumped to think that they could, though. Will be watching this thread with interest.

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 7:23 pm
by bob the r0bot
There might be a trimpot inside that controls the feedback range you could tamper with.

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 7:38 pm
by colossus
No trimpot, already checked. I don't know...a few reviews mentioned oscillation and I saw a demo here and there that got a bit more wild than mine with decay/dwell cranked. Manual also mentions oscillation.

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 9:17 pm
by Ev_O)))
Yeah my mates one self oscillates dramatically. Pretty insane.

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 10:11 pm
by UglyCasanova
Maybe try changing the PT2399? :idk:

Re: My Ghost Echo won't self-oscillate!

Posted: Wed Aug 17, 2016 10:43 pm
by colossus
Yeah, that's worth a shot. I have a bunch. Can't hurt at least!

Re: My Ghost Echo won't self-oscillate!

Posted: Thu Aug 18, 2016 12:06 am
by taco satori
Had a big box Ghost Echo that definitely oscillated before I got anywhere close to the full turn of the knobs. Chip? Tweaks to the corcuit for the smaller version? Larger box mojo oscillation toan?

Re: My Ghost Echo won't self-oscillate!

Posted: Thu Aug 18, 2016 1:11 am
by bob the r0bot
It's totally possible that they tamed it back in a later board revision. It might be worth asking mr earthquaker if that's the case and busting out the soldering iron.

Re: My Ghost Echo won't self-oscillate!

Posted: Thu Aug 18, 2016 2:04 am
by Ev_O)))
Yeah big box or small? My mates is a big box

Re: My Ghost Echo won't self-oscillate!

Posted: Thu Aug 18, 2016 9:18 am
by colossus
Small box. I'll try a new chip and if no dice, I'll email EQD. I found a thread about DIY ghost echos and they mention swapping a certain resistor for more feedback.