Techo Delay, what makes it do this?

[jimilee]

So this is a techo delay from effect blade, what makes it thump when it's on and off? Where do I start troubleshooting this?

[culturejam]

Is the main power filter cap backward?

[jimilee]

Nope. Checked the polarity of everything first thing this time.

[midwayfair]

Are you in square wave mode there? Does it make the same noise in other wave forms?

[jimilee]

It does. I sold it to deface though as I didn't like the way the pedal sounded overall. He can probably make it go. Thanks to everyone for your help.

[culturejam]

I had a test rig that did that sometimes when I plugged the power in. I never did figure out exactly what the cause was, but when I removed the power filter cap, the thumping stopped. Maybe a bad cap?

[jimilee]

Dammit! Oh well. I didn't care for the sound though. If it was a bad cap I bet I know exactly the one it was, I had some non polarized electros