Squealing Glory

[witte.joshua00]

Hey everyone! Fairly new to DIY pedals.

I completed the Glory Hole overdrive and went to test it and had some issues:

Bypassed worked great. When I turn the pedal on and turn up volume I get this high pitch squeal. Honestly sounds like a sine wave. The potentiometers will all change the pitch/volume of said squeal… but I have not found a pattern. The tone pot seems to have the biggest effect because when I touch it, it lowers the noise a bit. C101 also has a major effect on it when I touch that component as well. I do not hear my guitar whatsoever when pedal is engaged. When I turn it back off the squeal is still faintly present.

As far as connections go I believe they’re all solid according to my multimeter. One thing it may be is my Transistor is a 2n5458 as opposed to 2n5457… but from what I read it may just provide higher gain???

Thoughts? I’ll add some pictures later.

 

[swelchy]

Pics or it didn't happen...

 

[witte.joshua00]

Pics or it didn't happen...

I have a video as well… can’t figure out how to upload it though.

 

[witte.joshua00]

Hey everyone! Fairly new to DIY pedals.

I completed the Glory Hole overdrive and went to test it and had some issues:

Bypassed worked great. When I turn the pedal on and turn up volume I get this high pitch squeal. Honestly sounds like a sine wave. The potentiometers will all change the pitch/volume of said squeal… but I have not found a pattern. The tone pot seems to have the biggest effect because when I touch it, it lowers the noise a bit. C101 also has a major effect on it when I touch that component as well. I do not hear my guitar whatsoever when pedal is engaged. When I turn it back off the squeal is still faintly present.

As far as connections go I believe they’re all solid according to my multimeter. One thing it may be is my Transistor is a 2n5458 as opposed to 2n5457… but from what I read it may just provide higher gain???

Thoughts? I’ll add some pictures later.

IMG_1378.MOV

drive.google.com

Here’s a link to a video for the noise

 

[swelchy]

is there n insulator on back of your pot that's touching the pcb...,, Your soldering looks fairly cols in a lot of places... Do the normal and look for bridges/shorts etc etc... you may nee to take it all bac out to inspect.... also where di you purchase the "IC".. .sometimes counterfeits will cause issues

 

[jwin615]

If your solder points look like blobs like on you jack wires, you definitely need to reflow them. Check your resistor values. If you're not great at reading bands, just use another build report as a cheat sheet.
If you have an audio probe built, check
IC1 pin:
3
6
7
1
And fet 3 and 1 where do you lose guitar signal?

 

[jcpst]

As swelch and jwin mentioned, there’s some spot that look like cold joints. And anywhere you have a blob instead of a volcano shape is suspect.

Those jack wires, it’s a lot easier to solder them when you thread the wire underneath and up through the hole.

Here’s a few photos that point out items I’m curious about.


I watched your video. I had a pedal sound like that once, using jacks like these. The signal wire might be making contact with the enclosure.

It looks like the wire is on top of the pad, instead of in it.


You want less of a trailer hitch ball look, and more of a volcano look here. Some of those look to be almost touching. Also, where I circled the resistor pad, some of the those look like there wasn’t a solid joint created.

 

[witte.joshua00]

is there n insulator on back of your pot that's touching the pcb...,, Your soldering looks fairly cols in a lot of places... Do the normal and look for bridges/shorts etc etc... you may nee to take it all bac out to inspect.... also where di you purchase the "IC".. .sometimes counterfeits will cause issues

As swelch and jwin mentioned, there’s some spot that look like cold joints. And anywhere you have a blob instead of a volcano shape is suspect.

Those jack wires, it’s a lot easier to solder them when you thread the wire underneath and up through the hole.

Here’s a few photos that point out items I’m curious about.

View attachment 89729
I watched your video. I had a pedal sound like that once, using jacks like these. The signal wire might be making contact with the enclosure.
View attachment 89730
It looks like the wire is on top of the pad, instead of in it.

View attachment 89731
You want less of a trailer hitch ball look, and more of a volcano look here. Some of those look to be almost touching. Also, where I circled the resistor pad, some of the those look like there wasn’t a solid joint created.

I could not for the life of me get the solder to flow onto the jacks, any suggestions?

 

[DailyDovetails]

I could not for the life of me get the solder to flow onto the jacks, any suggestions?

Either put flux on them or sand/file until you expose some copper. Make sure your iron tip is clean and has a bit of solder on it. Heat both the wire and jack. If you have an adjustable soldering iron bump up the temp some.