u/InadecvateButSober

So i made a tube preamp that can do different levels of coldcut overdrive, has a simple FMV tonestack with a... uhh... WTF switch that i initially made by mistake, but decided to make it a feature. No idea how it works, but it changes properties of "High" potentiometer.

At 70%+ Gain pot the palm mutes start to properly chug and the Pick Squeals almost play themselves (when i try to play normal notes).

But... My cheapo Ibanez has real buzzy pickups. So demo is delayed until i either do away with the buzz or get better pickups.

Simplified soldano preamp, output transformer helps maintain the normal phase.

it wasn't working because i am stupid and wired the XLR/Jack incorrectly. Stay tuned for another post where i will put schematics and point-to-point layout.

Help Dora find the source of hum.

2x6n2p i have 13 of those tubes and the "from conservation" ones don't change anything.

Anode is 110v before rect, 150v after (4x10A10 + 47u400v). Heater is AC from 9v transformer with resistor balancing and dropping resistors to 6,3v.

Fellas, if i'm getting an insane 50cycle hum in my preamp, can't i just filter it out with a band-stop filter?