I stripped everything off the chassis for a good cleaning. Stripped all the way to the blank chassis.
I decided to one up Nik...
![Laughing :lol:](./images/smilies/icon_lol.gif)
I will use separate switches for the channel switching and clipping instead of the push-pull pots. I added an LED for the clipping switch as well.
I'm using 6V6s along with a GZ34/5AR4. This will require changing the values of the filter caps. I'm thinking a 32/32 paralleled cap can for the reservoir, and moving the choke over to supply the screens. Does anyone know what kind of current this choke will handle? Enough to supply the screens and preamp? If it will work, I will move it closer to the associated filter caps. If not, I'll get another one and locate it there.
Has anyone run 6V6s in an AO-43? If so, what voltage was on the plates?
By the way, I can make these board sets on the CNC. If anyone is interested, PM me. More later...
EDIT 5-16-23: I added files for the board... a pdf can be used for 1:1. Let me know if there are any other file forms needed. I can probably export and post. I added the DIYLC file for this... couldn't post it as a .diy file so I zipped it.
EDIT 6-8-23: I built this one again and tried to correct the errors I found. The layout files have been updated. I have included the 2250 schematic... Follow this but deviate where the layout differs. As an example, the bias feed resistor dropping AC to the rectifier was actually was 47k as opposed to the 220k shown in the schematic. I've also added voltages using a 5Y3 rectifier.