I have a friend's JE LAbs 76 Full Function preamp that I'm trying to get back to it's original design after someone tried to sloppily convert the 6SL7s to 12AX7s and added a few other questionable mods. I'm needing a schematic to go through and see what has been changed by the modder
and needs to be changed back to get to the original design.
This particular FF preamp has two 76, two 6SL7, and two 6J5 on the main chassis. The outboard power supply has a single 5V4. Any help with this would be much appreciated. Thanks.
Larry D.
