Last post by joecool85 - August 09, 2022, 09:08:10 PM
No buffer needed between the power amp and the preamp (Bluesbreaker). That said, I've never used a BB as a preamp. You won't know if you like it till you try it. My guess, you won't have enough tonal control. You like the sound of them which is great, but you don't send it into a flat eq'd amplifier - you send it to a guitar amp. Even when you set a guitar amp eq to look flat, it has a large mid cut and sometimes other shaping.
Still haven't made progress with this project yet due to being sidetracked with other problems. I've decided that building a busking amp for just the guitar or maybe guitar and vocals would be a better approach for now.
I was considering using this Blues Breaker pedal kit as a guitar preamp. (I like the sound)
Yes TassieVikingman,, fp is short for Flame Proof.
@ Scooby, Those resistors often run warm but as they drop a fair amount of voltage they cop heat, if the 130-Ohm resistor has burnt then the resistance may have dropped and then C285 has likely been running over the voltage rating and died, as you have found. I'd replace C286 while you are there. Even better replace with 35volt caps.
If those 2 resistors are running very hot that can shorten there life. If excessively hot in normal use you can use 2 watt resistors which will run cooler and hence last longer. Phil.