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Okay, I know everyone wanted the gut shot but I want to hear the thing. Especially this pattern delay that you speak of.

Also, why the Multplex Jr? Seems like it would have been a little less punishing to do a slightly simpler delay. I

I really like the sound of the repeats on the multiplex. I thought about using different delay circuits but decided that keeping things consistent might help with ease of use.

That's an intense build.

Why did you decide to build 4 in 1?

I wanted to have the option to run them in a number of series, parallel and stereo combinations. I also wired the feedbacks of each delay to either feed back into itself or any of the other delays which can result in pattern delays.

Here is the inside



You can't see the bottom layer but I didn't think to take pictures as I was stuffing everything in the box. I gave up on attempting to keep things neat pretty early on..

This is a 4 in 1 delay pedal I built. It is 4 1776 multiplex junior circuits with some mods. 

I recently finished a multi delay build but am getting some noise with it.  I'm going to give the huminator a try to see if that fixes the issue. I plan to use the layout on this page:  http://tagboardeffects.blogspot.com/p/forum.html

I'm concerned about getting a voltage drop.  This build is very current hungry.  Would it work to use a 9V regultar and a 12V or 18V power supply as a solution to the drop in voltage?

Thanks!

I recently finished a collosallus flanger but am hoping to mod it to increase the width control for when using it with chorus settings.  Does anyone know of a way to accomplish this?

Thanks for the suggestion and offer Chris.  I actually bought a couple of phantom pain boards from you a while back.  I used one and built it as a modular unit.  I'm still deciding what to do with the other one..

Thank you for the info! 

If I use the same delay circuits and wire the two outputs from the mixer, will there still be impedance issues?  From what I can remember when I was first experimenting with running delays in parallel was that I got a louder signal when wiring the mixer outputs directly to the output rather than using the blend pot.

I did wire the switch so when in series mode the signal goes through both effects but uses only one half of the mixer.  My guess is this is why there is a volume drop when the effects are in series rather than parallel.

I'm going to try a different method using a different mixer circuit to try accomplish what I'm going for. 

I don't think it is a phase issue.  The blend circuit has the option to reverse the polarity and when I tried that the signal cut out completely.

I'm attempting a multi-delay build and am trying to work out the switching to go between having the delays in series or parallel.  I've done this a few times, but my method has always had issues with volume differences.  I've typically used this configuration:

Input into a splitter:  http://tagboardeffects.blogspot.com/2014/08/amz-2-channel-splitter.html

I wired the series/parallel switch using this layout:  http://www.rhythmanddetonation.com/wp-content/uploads/2011/01/SERIES-PARALLEL.jpg

I then used this layout to mix the signals:  http://www.sabrotone.com/?attachment_id=3039     I did omit the blend pot and just wired both signals after the 10uf capacitor to the output.

When in series mode, I get a drop in volume.  I tried getting rid of the mixer all together and just wiring both outputs of the delays directly to the effect output.  When doing this, I get unity gain in series mode, but a volume drop in parallel mode.

Can anyone think of a better way to accomplish what I am going for? Or explain why the volume differences occur using the different methods?  I can draw up a diagram of exactly how I wired everything if that will help.

Thank you!

Re-reading my post, I realized I should have worded things differently.  Could using a capacitor with a very high capacitance be dangerous even though the voltage would be low? For example, is a 10000uf capacitor any more dangerous than a 10uf capacitor if they are both in a circuit that never exceeds 9 volts?

Can a capacitor be potentially dangerous if the circuit never gets more than 9 volts and the capacitor is rated for much more than 9V?  Even when using very large values?

I added a capacitor from pin 6 of the pt2399 to ground similar to the Triton delay and I am now satisfied with it!  I used a switch to have the option for a long change and a short change.

The Triton delays looks really cool and gets close to want for but I don't think it can do exactly what I'm going for.  With the triton, it seams as though the time gradually shifts from one setting to the next.  I'm hoping for an instant change for the time control.  It would be like a square wave modulation that has a very wide shift but you can control exactly when the shift occurs and also the amount it shifts.

Would it be possible to use an led/ldr combo to control both of the delay times and shift between them with user control?  I don't get why when using a switch to shift the delay times the pop happens, but when using an led/ldr modulation board with a square wave setting the time can shift widely without the rumble noise.

A rumble would be a great way to describe it.  Do you still get the noise if your delays are set to the same speed?
  The pitch changes are exactly what I am going for.  My hope is that I can set the delay times so that when engaging the switch my repeats shift up or down to a specific pitch interval.  For example if I set one delay to 200ms and the one other to 100ms the repeats would shift an octave.  I get the noise even when no signal is going in to the circuit and I press the switch.  I am not using an LED indicator and have tried at least two different switches but both had the noise.