Dan0h
Well-known member
So this has been an adventure. Many lessons learned the hard way. But now I’m there and going forward should be a breeze.
Turns out I had the pinout flipped for the tube this entire time, which is why I was getting Hv on my output! I thought the pin out was for the socket not the tube. Doooough! Also had the heaters out of wack. But now it rips. Just have to dial in the right frequency’s. And dial down the gain so much gain.
Having the trim pot on the Hv really makes things interesting because you can hear what 100v to 300v sounds like on the tube.
Next step breadboard in the tone stack from my West (basically an old fender tone stack).
Turns out I had the pinout flipped for the tube this entire time, which is why I was getting Hv on my output! I thought the pin out was for the socket not the tube. Doooough! Also had the heaters out of wack. But now it rips. Just have to dial in the right frequency’s. And dial down the gain so much gain.
Having the trim pot on the Hv really makes things interesting because you can hear what 100v to 300v sounds like on the tube.
Next step breadboard in the tone stack from my West (basically an old fender tone stack).
I breadboarded several tube preamps and lost the battle with oscillations a few times.
