sluckey wrote: ↑Sat Mar 02, 2019 10:57 pm
What kind of meter? Try another meter. Cycling from OL to low mV is not a characteristic of an amp that is stable and sounds good unless you are Neil or Eddie.
My meter is a newer Klein, I'll try another meter and make a video. Thank you
Yes I had requests for stock JCM800 2204, JTM45 and several of the 50w Hot Rod Plexi's (HRP) and everyone said they loved that HRP.
For fun I also that my Ultimate High Gain Amp at the show with it's squealing high gain that scared a few of the players it has incredible high gain too much.
@Mark Fowler
Hey Mark I was going to start a HRP 50 build and have a couple questions if you wouldn't mind? In comparing the DBM sketch to your gutshots it looks like you dropped the 1000pF (C12) on the Mid pot wiper to gnd, the bass pot looks like it is connected as a variable resistor (2 legs) rather than a pot (3 legs), you added a resonance control and dropped the 100K (R37) from the Master Volume to go to the FX loop. Do I see that correctly? Can you comment on that and any other differences?
Thanks for your time.
Joe
maint_tech wrote: ↑Mon Jul 12, 2021 8:49 pm
@Mark Fowler
Hey Mark I was going to start a HRP 50 build and have a couple questions if you wouldn't mind? In comparing the DBM sketch to your gutshots it looks like you dropped the 1000pF (C12) on the Mid pot wiper to gnd, the bass pot looks like it is connected as a variable resistor (2 legs) rather than a pot (3 legs), you added a resonance control and dropped the 100K (R37) from the Master Volume to go to the FX loop. Do I see that correctly? Can you comment on that and any other differences?
Thanks for your time.
Joe
Yes the bass pot is wiper to first terminal (3).
I didn't see any need for the 100k prior to the PI coupling cap.
That mid pot 1000pf cap was Stephen's later addition, which I didn't use.
Thanks for the reply Mark.
One other thing, did you elevate the heaters on your builds?
I am collecting parts and making a full schematic, would it be Ok to post?
Joe
maint_tech wrote: ↑Mon Sep 06, 2021 3:22 pm
Thanks for the reply Mark.
One other thing, did you elevate the heaters on your builds?
I am collecting parts and making a full schematic, would it be Ok to post?
Joe
Its fine to post... but you may want to start a new post.
"Education is what you're left with after you have forgotten what you have learned" - Enzo