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Sounds to me like a bad cap.


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I thought maybe that could be it until I built a second board.  I guess I could have just got a bad batch of caps.

I also forgot to mention that I built 2 of these boards and got the exact same result.

Hey guys! Haven't been around in a while.  I just built a morning glory based on the tagboard fx layout.  I built it for a friend and really need to get it working soon.  So it works perfectly for almost 2 seconds when as soon as I plug in power and then it sounds like someone is turning the volume down until it's off. It just dies. I've tried replacing the ic and the transistor because I have both socketed. It does somewhat work with one particular 4558 ic, but with anything other than very light picking of the strings and it sounds terrible. And the voltages on the 4558 ic are way different than with the correct ic. Just wondering if anyone has had something like this happen before and if anyone might have any clues to the problem.  Maybe I've just gotten rusty at building pedals lol. Any help with this would be greatly appreciated!

Ok cool. thanks

I mean use like a patch bay before the pedals to convert the stereo from the keyboard/pc to mono so I could use regular pedals.  Just need a schematic for stereo to mono I guess.

hmm... what about some type of stereo to mono conversion?

I have a couple of pedals that I don't use in my main setup, so I was thinking of building a mini pedalboard rig for my keyboard.  My keyboard is actually just a midi/usb controller for my computer, so the sound comes from the computer (trs).  I could probably set it up by just splitting the signal and running two channels. Basically I'd have one side going through a string of pedals, and the other side going through another.  But I think I'd rather try a stereo setup rather than dual mono (hope I used that terminology correctly).  So does anyone know how I could build a pedal for stereo instead of mono?  Would it require building 2 of the same pedal in one? Buffered splitter on the input and output?

Just got an Eventide Timefactor in a trade! 
Pretty excited about this one.  Funny thing... while I was playing with it I had the thought "If my zero point had the tap tempo/preset capabilities that this timefactor has, I'd just build another zero point and sell this."  Out of all the delay pedals I've tried, nothing beats the zero point  SDX.  For those of you that haven't built one yet, you should.  It's awesome.  Thanks Madbean for designing these! 

+1 for the TC HoF, incredibly versatile pedal.  It can get close to shimmer with the church/cathedral settings.  I'd love to build a shimmer verb to pair it with.

Tayda has some cheap pots that would work well for board mounted pots with knobs on the side

http://www.taydaelectronics.com/potentiometer-variable-resistors/rotary-potentiometer/200k-ohm-logarithmic-taper-potentiometer.html

Everything works fine if I wire it for true bypass.  In buffer mode, it only works if I disconnect the ground/sleeve connection to the switch, which disables the led.

yep.  Everything looks fine to me.

I recently built a kingslayer.  I chose the buffered version.  In bypass and effect on, the led stays on.  I'm thinking it may be something to do with the switch? I used a dpdt.  I get sound in both bypass and when the effect is on.  When it's on, it acts as a clean boost, the switches don't have any effect on the sound, and I can't manage to get any clipping out of it. The gain pot acts as if it is wired backwards, but it's not, I triple checked, and it just makes the volume louder, it doesn't add any dirt to the signal.  I have 1n34 in D4 & D5, red 3mm leds in D8 & D9, and bat46 in D2 & D3.  Any help would be greatly appreciated.

I've had one for a while.  Haven't done anything with it lately.  I did make a little electronic drum set with it to work via Mainstage on my computer a while back.  Very interested in what you guys will come up with. I need to go dig mine up again now haha

Yeah... figured it would be complicated.