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This is the Crown Jewel from BYOC.  I also added the 27v Boost and an octave up circuit. 



Here is a demo:

I finished this build a while back.  It is the Octagon from pedalpcb with an additional tone control. I also added the FV-1 clock module board with the option to switch between two different sample rate settings.   Nothing special looks wise but I like the way it sounds.



Here is a demo:

I have been breadboarding a circuit with the hopes of using PT2399 chips in series to get long delay times similar to the Deathklaw, Sagan Delay, etc.  I'm having an issue getting the delay chips to each have the same delay time.  I currently have it set up like the Deathklaw current mirror section of the circuit.  The longer I have the delay time set, the more the delays don't seem to be synced with each other.  If I have a delay time of 300ms at the first chip, I would think I that I should get another 300ms from the second totaling 600ms.  Instead the longer the delay time is from the first delay, the second delay gets much longer than the first delay.  For example, if delay 1 is at 200ms, delay 2 is 300ms totalling 500ms.  If delay 1 is at 300ms delay 2 is at 900ms, totalling 1200 ms.  If delay 1 is at 500ms, delay 2 is at 2000ms totalling 2500ms.  These are guesses of exact delay times but I can't think of a better way to describe my issue.

I have built both the Deathklaw and Sagan delay and neither behave this way which makes me think I'm messing something up but I have checked things over and over and started from scratch and keep getting the same result.

If anyone has any suggestions I would really appreciate them!

I would like to use my electro harmonic 8 step program to control the delay time of a pt2399 delay? Does anyone know if this is possible or can point me in the right direction?

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?

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!

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'm hoping to be able to switch between two potentiometer settings with a momentary footswitch.  The footswitch would still function like a momentary switch. I will need it to be either a SPDT or DPDT.  A SPST won't work for what I'm going for.  Would something like a coda relay bypass work in this application?  My goal is to have two different resistance settings, each that you can dial in with a pot, and have the ability to go from one normal setting to the other setting while the footswitch is held down.  I have tried it with a DPDT momentary footswitch but it clicked waaaay to loud to be useable.

Any help is appreciated!

I am attempting to build David Rolo's Molecular Disruption Device.  I have the everything finished and now need to program the EEPROM.  I have an embarrassingly small amount of programming knowledge and am hoping someone can help guide me through it.  I have a Pickit 2 clone that I'll be connecting to the PCB and programming it that way.  When I first plugged the Pickit in to my computer it looked like the drivers were automatically installed.   I have SpinAsm downloaded onto my computer and can open different codes.  When I click the assemble to Program in the SpinAsm software my Pickit busy LED does not flash like I thought it was supposed to.  Am I missing something? 

Also, when I connect my 9V power supply to the PCB the overload indicator LED lights up.  Is this normal?

Any help would be greatly appreciated!

I have a dirtbaby and really like the sounds it provides but I'm not a fan of blend controls in general.  I am hoping there is a way to have individual controls for the dry signal and delay signal.  I was thinking it would work to replace the level pot with a fixed resistor and remove the blend pot and instead have C4 and C38 connected to R6 with their own volume pots.  I have it hooked up that way now but unfortunately it isn't working the way I had hoped.  If the dry volume is turned down it cuts both signals entirely.  The wet volume is loudest when the dry pot  is turned almost all of the way down and the wet pot is turned all the way up.  The way I have it hooked up is a 1M trimpot instead of the Level pot.  C4 is connected to lug 3 of a 100k pot.  Lug 1 is connected to ground and lug 2 is connected to R6.  C38 is connected to lug 3 of a 100k pot and lug 2 connected to R6.  Can anyone tell me why this isn't giving me individual control over the wet and dry signal and they are still interactive with one another?  Is there a better way to accomplish what I am going for?

http://www.madbeanpedals.com/projects/Dirtbaby/Dirtbaby.pdf

Thanks!!

I just finished a pedal with a splitter and blend so I can put effects in series and parallel. 
I used this splitter:
schematic   http://www.muzique.com/lab/splitter.htm   
layout   http://tagboardeffects.blogspot.com/2014/08/amz-2-channel-splitter.html
and this mixer:
schematic   http://runoffgroove.com/splitter-blend.html
layout   http://www.sabrotone.com/?attachment_id=3039
I would like to get some more volume out of either the splitter or the mixer.  Is it possible without adding an additional circuit like an lpb-1?  I seem to get unity gain when using my effects in parallel but in series there is a noticeable drop in volume compared to bypass.
Anyone have any ideas?
Thanks!

I've recently built a couple of dirtbaby delays and wanted to add a tone control for darker repeats at longer delay times.  I tried replacing C13 (from the 2015 build document) http://www.madbeanpedals.com/projects/Dirtbaby/Dirtbaby2015.pdf  with a much higher value and a pot between the capacitor and ground.  It works like I was hoping but unfortunately I am getting distortion on the repeats when the repeats are darker.  Is there a different capacitor that I could have replaced or a better way to add a tone control?

Thanks!

I have recently built the paramix from GuitarPCB:

http://www.guitarpcb.com/apps/webstore/products/show/3456364

and am hoping to add the option to have the option of having the loops in series as well as parallel.  Is there a way to modify this circuit to add a series switch?  Perhaps something like this:

http://www.rhythmanddetonation.com/wp-content/uploads/2011/01/SERIES-PARALLEL.jpg

Or is there a better project to accomplish this?

Thanks!

Hey everyone

I just build a pork barrel, but am hoping to get more depth out of it (especially for slower speeds).  I've seen threads for earlier versions that accomplish this, but haven't found one for the latest version.  If anyone knows a mod to get more depth, and is willing to point me in the right direction, I would really appreciate it.

Thanks!

Hey everyone

I've been working on and modding a moodring for a while and am getting a lot of noise with it.  I used the input level control mod from this thread:  http://www.madbeanpedals.com/forum/index.php?topic=20056.0  I also added an extra space pot for fine tuning the time (25k and 5k).  I also added an insert loop.  I have it wired so I can switch between having the loop inserted at lug 3 of the dwell pot or lug 3 of the ring pot.  I wired the trim pot externally and added modulation to the pt2399.  I had everything working with no noise except the input level wasn't doing anything.  I replaced the pot and it is now working but I am now getting a lot of noise even with the input level turned down low.  I checked all of my voltages and they seem to be fine.  I probed it and the noise starts at the first TL072 (pin 1).  I tried replacing both TL072 chips, the pt2399, and the 7805 but that didn't fix the issue.  I noticed that if I have one hand on my test box and another on my table the noise is a little reduced but there is still a lot of it.  I tried  using a 470k resistor instead of the input level pot with no luck.  I tried the same power supply with another pedal and that one works perfectly.  Does this sound like a grounding issue?

I will try to get a video up soon

Any help is very much appreciated!