SOLVED Glory Hole hum when turned on

[Reno315]

Hello,

This is my first build that I am unable to find the issue when one exists. I thought I would reach out to everyone and see if there was anyone who have had this before.

When turned on there is a lot of hum. When turned off there is hum. However the pedal functions fine otherwise.

I tried a battery, still same hum, checked all my wires going to ground and soldered them again, and reflowed the whole board, still the same hum. I replaced the foot switch and the jacks, still same hum. I replaced the electrolytic capacitors, still same hum. I replaced the transistor, still the same hum.

The tone sounds fantastic and all the controls work, but the hum is overbearing and I cannot seem to figure out what is causing it. I had 5 other builds this week and this was the only one giving me gremlins.

Any suggestions are greatly appreciated, thank you in advance for your help.

 

[Chuck D. Bones]

Got a hummer at the Glory Hole? ?

Try putting it in a box. There is no shielding when the circuit is out in the open. Is anything connected to the input in the video, or is it left open? The pix are too fuzzy to see anything, can you take some that are in focus?

 

[Reno315]

It's funny because it actually didn't hit me (the post title) till you just said that ?.

I actually figured it out being a bad on/on switch. Sounds great now hum all gone.

I do normally test them before the enclosure, and do figure in some extra noise from not being shielded. This thing was the loudest hum I've ever heard from a pedal! Something inside that switch must have had a bad ground.

Thanks for the reply though, that is a great tip to help unwanted hum in general with these little circuits. Cheers!