Buffered effects loop schematic. Please?

[spankenstrat]

I am thinking about adding one to a 2204/EL-84 project, but can't seem to find some schematics to go off. I'd like to look at the KOC Ultimate, but can't cough up $100.00 for the book right now. I anyone would be so kind as to send me some schematics that would be great!

the_sargents (at) isp (dot) com

[statorvane]

Well, there are several schematics over at the Blue Guitar http://blueguitar.org/schems.htm#BlueGuitAmp. There is a serial loop, specifically for a JCM 800 2203/2204 amplifier. I believe it uses a 12AU7. Look under ther Mods section for Marshall. Should be able to slide this between any 2204 preamp and poweramp.

[brownnote]

Here's another option:
http://ironsounds.com/

[drz400]

SS loop just dont have the headroom a tube does for the recovery if put in front of the phase inverter. They are fine for a send and a mixer return but there is nothing like a tube for the return gain.