brewdude wrote: ↑Sun Nov 15, 2020 3:30 pm
Thanks for updating the schematic.
Did you happen to take the B+ voltage readings?
Also, what rectifier tube is it using? 5Y3GT?
Benson site says 5AR4. Makes sense for the schematic at ~50V drop.
I'm bored on a plane and came across this. I must say I'm flattered to join the ranks of traced stuff on here...I've used this forum as a resource many times over the years, especially when I was doing repair work. Hopefully it is helpful of me to point out at first glance of the shared schematics that the power supply for the Monarch is not correct and will probably hum as drawn, the Tall Bird output buffer will not work as drawn, and the Vinny power tube grid stopper should be 27k, not 2.7k. bonus note: we use all .02 for the PI caps in the Monarch these days since gets rid of a bit of tubbiness but I haven't switched my personal amps over because it really doesn't change much.
Regards,
Chris
chasbenson wrote: ↑Wed Nov 18, 2020 12:29 am
I'm bored on a plane and came across this. I must say I'm flattered to join the ranks of traced stuff on here...I've used this forum as a resource many times over the years, especially when I was doing repair work. Hopefully it is helpful of me to point out at first glance of the shared schematics that the power supply for the Monarch is not correct and will probably hum as drawn, the Tall Bird output buffer will not work as drawn, and the Vinny power tube grid stopper should be 27k, not 2.7k. bonus note: we use all .02 for the PI caps in the Monarch these days since gets rid of a bit of tubbiness but I haven't switched my personal amps over because it really doesn't change much.
Regards,
Chris
Wow, so nice to see you here!! Obviously, your circuits are top notch, but even cooler that you help with some constructive criticism. Very refreshing!
Out of curiosity, how close is the layout I posted? I had no pics of the reverb circuit to go by and I know that the filaments are not DC, like what is found in your amps.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
@dorrisant
I don't put reverb in heads because of noise, and reverb grounds can be very fussy, so I can't speak to that portion of the layout. I glanced over the rest of your layout for a few seconds a few days ago and didn't see any obvious errors, but I'm not going to take all the fun out of this for y'all