Kennyg2209
Well-Known Member
I set up the 3 band tone control that you can love from Anglefire.com (Fun with tubes) on a breadboard. I'm having a couple issues . I'm feeding it with a 1khz sine wave . The signal coming out is not very clean. It almost appears like a few signals close together . The other thing is that I didn't think there would be a lot of gain in the circuit. It said on the website -1db. I'm still trying to understand the db's after 40 years. I'm putting in around 5vpp, and getting out 10 times that. I've gone over my circuit many times and pretty sure everything is correct. I shouldn't have any ground loops. I don't know if I would be getting interference from the filament wires or something. I'm using a 5814 (12au7) and 6eu7. My pinouts are all correct. Any thoughts on this?
Thanks
Kennyg
Thanks
Kennyg