Thermionic Deluxe lots of noise even while bypassed

[Andrion]

My Thermionic Deluxe seems to work fine, has a cool sound, but induces a lot of noise on my signal even on my clean sound when it's turned off; and when it's on it's terrible;
I tested with only this pedal in the chain (lots of noise) and with guitar straight to amp (zero noise)
I didn't notice during the week while only playing it through computer plugins, but yesterday I plugged it on my real amps and it was terrible;

 

[BuddytheReow]

You may want to try shielded wire going to/from the jacks since this is a high gain pedal. Does putting a buffer in front help?

 

[Andrion]

You may want to try shielded wire going to/from the jacks since this is a high gain pedal. Does putting a buffer in front help?

I don't have shielded wire and I'm shipping this pedal on monday to my friend; may insulation tape on the connections help with it?
And I put a Boss pedal in front of it and it's the same

 

[Andrion]

the noise gets more intense when I interact with the wires connected to the tip of both in and out jacks;
it gets a little quieter when I touch the pedal; likely a ground issue, but I have no ideia of how to fix it

 

[BuddytheReow]

You'll need to scrape the paint/color off around the jacks on the inside of the enclosure. A razor blade or sandpaper will get the job done. Since the jacks are connected to ground, making the contact between the jacks and the enclosure will most likely tone down the noise.

 

[Robert]

I'd look really closely at these connections.

Nothing on the PCB would cause noise when the pedal is bypassed, that has to be an offboard wiring / hardware issue.

 

[Andrion]

I'd look really closely at these connections.

Nothing on the PCB would cause noise when the pedal is bypassed, that has to be an offboard wiring / hardware issue.

View attachment 78793

I remember the solder from one this points touched the other while I was working on that switch; but I heated it again until it separates;
I will disassemble the thing and redo the connections in this switch at least now I have a solder sucker thing that I didn't when building this

 

[Barry]

You might try retouching the joints on the power jack and In/Out jacks

 

[Andrion]

update: I redone all the in/out and power connections and re-soldered the mini pcb on the 3pdt; I didn't had shielded wires, but this time I at least used copper wire; still lots of hum.
I went to my friend who is an electronics technician, he couldn't find the problem;
we even went to his boss home on Sunday evening, got the circuit through an oscilloscope, tried to jump the gnd on the minipcb to different points of the circuit;
nothing worked
since this is for my friend, I'm about to buy another thermionic deluxe pcb and parts and build a new pedal, but I'm really afraid to this happens again;

in this video the pedal is bypassed:

thermionic.mp4

drive.google.com

 

[AceHyzer]

What if you pulled the in/out out of the 3pdt pcb and connected them together, bypassing the circuit and 3pdt entirely. You could see if the noise is still there. If it is, you’ve narrowed it down to the wire/input jack/output jack. If it’s not there, maybe snag a new 3pdt and wire it up either manually or with a different pcb just to be on the safe side?