PedalPCB Copper Clad (1590A Enclousure)

[PCB]

Build Rating

5.00 star(s)

Hello here! this is my second pedal "project":

-Tayda 1590A Light Gold powder coating painted, Drilled, UV painted
-Almost all components from Tayda as well, I failed with two of them (too tired I suppose), but maked me learn a lot.
-PCB´s and D9E Germanium Diode from Pedal PCB (also learned about tracking!)
- A lot of pre-project to make all fit, A LOT!
- And finally everything worked!!!

But overall lots of learning in this my second "project"

Now thinking on to do some new project this time with something original or maybe a mix of some kit and some original try in the same orders, and also learning programs to order preasambled pcb let´s see!!! Lots of thinghs out there!

BTW maybe you recognize the guy in the UV print

Thanks everyone support me in the trip!

 

[swelchy]

Nicely done!

 

[OD is Glorious]

A great circuit and I love to see how builders have their own ideas about how to put the works into such a diminutive box!

 

[CroasmunEngineeringLabs]

I dig the spades for power. That's slick.

 

[PCB]

Btw I think that the flux inside the stain makes all bright around solders, it is possible to clean the pcb after soldering and how??? Isopropyl alcohol? And a teeth brush?

 

[andare]

Btw I think that the flux inside the stain makes all bright around solders, it is possible to clean the pcb after soldering and how??? Isopropyl alcohol? And a teeth brush?

Yes. Also a lint free sheet to soak up the IPA. Use the toothbrush your ex left behind.

 

[PCB]

I´ve been testing the pedal! lot of noise kind of hum, reading here and there looks like is something happens to these and also the originals
But also readed here in the Forum that changing C4 to see ifdoes anything anfd C100 (I suppose C101) to be in the safe side.
It solved the thing to someone? and with which values should be it changed??? Thanks in advance!!!

 

[jwin615]

Hum sounds like a grounding issue.
This may be a result of sanding down the sides. Do you see any exposed copper on the edge of the PCB?
Does it go away out of the enclosure?

 

[jwin615]

C100 and 101 are just power smoothing caps. Shouldn't be an issue unless they're damaged.
C4 is just passing high frequency to ground and, since it's tied to ground, won't induce hum.
Also, make sure you are testing it with the lid on to block emi, rfi etc

 

[jcpst]

Could the power cables running between the electros and transistor be contributing to the noise floor?

 

[PCB]

Will test tomorrow, thanks!

 

[jwin615]

This may be a result of sanding down the sides.

My bad, had this mixed up with another small box build posted elsewhere today.

Could the power cables running between the electros and transistor be contributing to the noise floor?

Could be. Good bit of extra cabling going on. IO wires crossing the off board wired pot.
May be worth eyeballing the cables once inserted. Jacks are really close. I would spin one 180°, personally. A small amount of rotation and you're going to have issues.

 

[andare]

I´ve been testing the pedal! lot of noise kind of hum, reading here and there looks like is something happens to these and also the originals
But also readed here in the Forum that changing C4 to see ifdoes anything anfd C100 (I suppose C101) to be in the safe side.
It solved the thing to someone? and with which values should be it changed??? Thanks in advance!!!

View attachment 116931

IIRC this circuit makes noise whe youn turn the knob, and there's hiss that can be tamed by increasing the cap to ground at the input. 10n shoudl do it.
Mine is not noisy but it's basically a worse Fuzz Face.

 

[PCB]

Which number of cap from the board would you change for 10n @andare? Sorry got lost...the scheme is bellow

https://docs.pedalpcb.com/project/CopperClad-PedalPCB.pdf

 

[andare]

Which number of cap from the board would you change for 10n @andare? Sorry got lost...the scheme is bellow

https://docs.pedalpcb.com/project/CopperClad-PedalPCB.pdf

C4.
A cap from input to ground will drain some treble to ground and get rid of radio stations and hiss but it has to be at least a few nF for it to be effective. No idea what 100pF even does other than shave off some imperceptible high frequencies but I'm sure someone will chime in and school me. This forum is full of knowledgeable folks.

 

[PCB]

Would be great if someone could give is opinion about this C4

 

[PCB]

ChatGPT says this

"Based on your description of the symptom:
the pedal likely has a slight oscillation or is picking up interference, and when you lower the guitar's potentiometer, the impedance changes, making the noise more noticeable.

That fits quite well with:
a sensitive layout,
or a lack of HF filtering.

So:
yes, changing C4 might help, but the sweet spot is probably much lower than 10nF.

My bet:
1nF or 2nF2 will likely improve things considerably without killing the tone."

 

[andare]

You could've breadboarded the circuit and tried the mod yourself instead of burning a ton of resources with an ai query, which wasn't that helpful.
Anyway what I told you is true, I've done it several times but only you can know what sounds good to you.

 

[PCB]

Cool! You are totally right, sure I'll try it, thanks a lot @andare

 

[andare]

Cool! You are totally right, sure I'll try it, thanks a lot @andare

And please report back your findings!