Messages

Ha no kidding!

Thanks very much, turns out I had a bunch of leaky caps, I'm wondering at 1uF with a cap that has max voltage of 50 or 100v if the tolerance allowed is just too much for this kind of circuit. Either that or I have some super cheap-ass caps.......

Hi all, I've built a couple of KOTs from Sabro's perf layout and the first two were/are fantastic, I'm just finished my 3rd and I have a POP that I just can't fix.

I've been driving myself nuts, short answer is I have a ton of leaky to very leaky 1uF electrolytics, messing around I realized that eliminating the output cap(s)-1uF right before out completely eliminates pop and the pedal works just fine.

So my question now is; I know they're not there for the fun of it so what am I risking/missing potentially not having them in the circuit.

Thanks in advance.

Ok tried the film cap and sure enough pop is gone, does that mean it was the output cap that was leaking so that's the one to replace, sorry might be a dumb question but I've built a bunch of pedals and never run into this, also really weird to have it on two separate builds of the same pedal. Thanks again for your help this was driving me nuts.

Thanks very much will give it a go

Hi, thanks for the reply, same issue on both pedals, double checked component values and all look correct, I get the pop with and without the charge pump, any other thoughts?

Thanks very much for your help, really appreciate it

It's not there on this one, do have it on the other I built, without it the pedal just runs at 9v, the issue is def the .45 v on the output, just need to know how to remedy

And yes it looks like I've got about .45 volts on the output, how do I fix that?

Thanks everyone for you help, here's a pic

Hi yes they work fine just get a brutal pop, tried reflowing the switch unfortunately no improvement. Thanks for the reply.

Hey there I'm in need of some expertise, built a Rullywow Queen of Bone Pedal, two actually, and they both have a serious pop issue, more than that when engaged they cause other pedals in the chain to pop. There are 1M pull down resistors already I've tried an additional 100k and then 2.2m resistor from output to ground with no luck. Any help greatly appreciated, I'm stumped 

Great suggestion, feel a bit silly but found a bridge and now it's blowing the roof off.

Thanks again for the help, really appreciate it.

Just triple checked the 100 vs 100k, will give them all another look.

Thx for the help

Hi all, I've built an Animato from layout here;

http://tagboardeffects.blogspot.ca/2015/11/human-gear-animato.html
(schematic below)

Functions as you'd expect except for a real lack of volume. With Vol and Dist cranked I get levels just below unity. I've replaced the electrolytics and the transistors but it hasn't improved. I believe this pedal should have tones of volume so any help would be really appreciated.

Any thoughts on what I should check?