So, over the summer, I bought a second-hand mint condition EHX Black Finger. It's been my go-to ever since. The past few days, I've heard this annoying noise coming out of it. I thought it might be a power-issue because I had my DMM plugged in. Unplugging the DMM seemed to work the first time. A few days later, it came back.
I thought maybe it was some kind of interference with the small Vox combo. So I unplugged the amp, ran the BF into a mixer, tried different cables, outlets, and anything else I could think of. Nothing has stopped it. It only happens when this pedal is on and now it's been consistent.
If anyone is willing to subject their ears to some horrible white noise for a few seconds, I'd really appreciate any input. I did a rough recording through the mixer. The output gain is cranked, so it's noisier, but it's that distinct clock/dial-up noise that's bugging me.
The only solution I can think of is to replace the tubes, because the noise is new and the preamp gain doesn't sound as sweet... but that could be my imagination. I really hope it's nothing wrong with the actual circuit. It was a dream pedal up until now.