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I would ask about this ground loop. Is it something wrong about the layout? Or my grounds connection? My psu? (it is a Boss 9v).
Seems to me there are not a way to connect the grounds without noise with drive to max.
This is very sad for me.

I tried, like I somebody else had did, to connect the ground from the pots to the ground row on the board. But nothing change. I can't explain this.
I'm using for this ground the test lead and the box is still open. But seems to me too much hoping I can solve this issue closing the box.

PS I changed, when the problem there were already, the stab pot wiring (that was reverse), the wiring of the gate, and the connection of the drive and comp between them, following some schematics, apparently more "true". Except for the stab pot I got no changing.
I replaced the 100R resistor with a jumper.

My best is to keep separate the ground wires from the pots and used a 100uF polarized cap between 9v ang ground to reduce some squeals.
I could insert a second polarized cap, I tried a 3.3uF between the lug 3 of the comp and ground. Alse this help to reduce the squeal.

But if I want to play without noise I have to set the drive at maximum 9/10.

Thanks!

Waiting for further suggestions.

Hi guys.
Unfortunately I need some help, again.
I built a Fuzz Factory circuit using the veroboard layout of tagboard:


I tested it, and it seems work well, except for a detail.
If I put all the ground, the negative from the DC jack, the ground wire from the board, and the two ground wires from the volume and gate pot all together on the input sleeve I can't set the drive pot at max, because I got much noise, and I even can't set to zero the volume and the tone pot of my guitar because the noise become a squeal.
I can solve this issue if I separe the two ground from the pots from the other ground and connect them on the sleeve of the output.
Anyway, also in this case I got a sort of noisy squealing whistle.

For having no noise I have slightly low the drive.

I don't know why this happends. I would build this circuit perfectly.

I'm using the madbeanpedals wiring, and just the grounds are not soldered.

Thank you!

I'm gonna make some tests and let you know.
And if I can use this 250k dual pot for another project (but I hardly think so) I could replace it with a 100k.

Thanks again!

I take the vero layout on tagboard. Verified.
Probably it is exactly like you said gtr2, about the oscillation.

And thanks m-Kresol for your suggestion.
Do I just solder a resistor between lug 1 and 3? It is a dual pot, so I assume I should do the same thing on both the part. It is so?

Thanks for reply.
If you wrong I wrong, too. Indeed I think the same thing.
I assume if I replace the 250k dual pot with a 100k I could solve the problem or at least I could set the pot in a more useble range.

I can settle with this bigger pot right now. But I would be sure if I replace it I can get better result.

(I wanted try the self oscillatin trick with a Rebote delay 2.5 soon).

Hello guys!
My first post here.
I play guitar and I learnt to build pedals, but I'm just moderated expert.

I built a Rub-a-Dub Reverb Deluxe on veroboard. I'm testing it and it seems to sound good. I tried the "only wet signal mod" taking off the 22k resistor, and also this works well.

I have just a problem. I can't set the dual pot over the half.
1776 board has a 100k Linear dual pot, but the layout I found has a 250k dual pot, it should allow longer decay. But if I set the decay pot over the half, after a while I got a sort of feedback effect, like with some high gain distortion, but clean, then it gets dirtier and pretty louder. The only way to kill it is turn the decay pot to min.
I power it with battery.

Is the dual pot too much big the problem?

Thank you!