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I am still having problems with my lowrider board.  My voltages on IC7 are off, pin 12 and pin 13 are wrong

Correct Voltage from Build Doc
Pin 12 9.1
Pin 13 0

My voltage
Pin 12 0
Pin 13 9.1

So whatever is driving my flip to flop in the 2nd flip flop of the 4013, is neither flipping nor flopping it.

When I look at the schematic  IC7B is off by its little old self, does that mean it is irrelevant to the circuit?

Curious.  The part I'm having a hard time understanding is why he insists upon an XLR out.  Wouldn't it be easier to just use a 1/4"?  It's going to be unbalanced out and it's hitting the mixer either way, so what's the point of taking that last step?  Just go 1/4" and bring the level up in the mixer.  Or is it not going to a mixer and he needs a balanced level signal from the XLR for some other reason?

On the other hand, I seem to remember reading about how to wire an unbalanced to balanced 3 conductor connector for better noise rejection, but I've never actually tried the thing myself.

Note: I looked it up, it's fig. 2 on this page:
https://www.prosoundweb.com/topics/audio/connecting_unbalanced_outputs_to_balanced_inputs_and_vice_versa/2/

I think because has never tried it any other way. 

I forwarded him a link to the TV helicon play electric.  It should do everything he needs and more.  He can run his six mic through the guitar input, his mic through the mic in, get a balanced signal out.....and it removes me from the equation, lol.

Not all in one but prob cheaper

I like the way you think, a lot cheaper, not to mention a lot easier! 

This is one of those projects that someone won't take no for an answer....

I have a buddy that wants me to make a custom pedal for him, he play saxophone and sings in a band.

Here is what he would like

XLR in>>>>Delay Pedal>>>>>>Wah>>>>XLR out.

So, the XLR in is coming in balanced, I hook up pin 1 of the XLR jack to ground, and pin 2 of the xlr jack to input.  Now the signal is unbalanced.  It goes through the delay and wah and then if I build a H&K redbox classic circuit, it should then convert that signal from unbalanced to balanced and everything can go to the mixer board like it is supposed to correct?

Whelp, I am too damn stubborn to give up on anything....

After dicking with it for a few hours yesterday and about 3 today, turns out it was a bad socket for the LM324.  Voltages are where they need to be everywhere except ic7, but I think I fried that chip so I ordered new ones.

Has anyone encountered bad sockets?  Seems like it should be foolproof. 

Thanks for following.

File this one under:

Chuck it in the F*ckit Bucket.

Pics and voltages as promised.  I am giving it until Friday before I throw in the towel..

Sent from my SM-G960U using Tapatalk

I will post pics and voltages tonight.

I have verified all resistors and capacitors.
All Diodes and electrolytics are in the correct orientation.
I have replaced all IC's and transistors.

After having built about 20 Madbean boards with success, this one is truly a kick in the face.

Whelp, wasn't the lm324's.  Same result as the Tayda chips.

Time to start diagnosing the rest of the circuit.  Yay me.

I ordered a new batch of lm324s from digikey to try.  I also might throw in a tl074 while I wait just for giggles.

I tested 5 chips all with the same result, so unless I got a bad batch of chips from Tayda, I am doing something else wrong somewhere.

I need some schooling please.

Ic5 on the lowrider is a LM324.  My voltages at pin 8 and pin 14 are whack.

Pin 8=-5.4mv
Pin 14=1.19 v

according to the build doc they should be:

pin 8=2.2 mv
Pin 14=7.9 v

What I don't understand,(and my knowledge is limited on pretty much everything)  is that according to the pinouts pin 9 and 10 feed pin 8, and pin 12 and 13 feed pin 14.

Is if my voltages are correct at 9 and 10 as well as 12 and 13, how can the chip be feeding me the wrong voltages?

Or am I completely off the mark?

Thanks for your help.

Awesome stuff!  For better fixturing, have the outline in your program, tape thin cardboard onto your bed, cut the outline out on cardboard, remove inner and set pedal in pocket. If you have any other questions let me know, I have been lazering for almost 20 years.

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Scar Jo FTW! How's it sound? I've been meaning to build one of these for a while.

I 'think' it does everything it is supposed to.  It sounds good, I just don't know when I would ever use it.  Maybe if I was real tricky like this guy.  Go to 1:15 in the vid:

That looks so cool. Fuzz into modulated delay?

Yepper