Plexi 6v6 - Rich Mod II Master Volume
Posted: Wed Jul 11, 2018 10:11 am
Hey guys -
I am working on a Plexi 6v6 build using the Hoffman 6v6 as a guide. I would like to add a PPIMV, and I am really impressed with the Rich Mod II PPIMV using a PEC 500K dual ganged pot as used by George Metropolous.
My question is this - on a standard 50 watt plexi, using a Rich Mod II PPIMV, the 220K resistors stay in place on the board and a 500K dual gang pot is used. On the Hoffman 6v6 layout, the board resistors after the caps that follow the phase inverter are 100K. Can I still use a 500K dual gang pot and wire the Rich Mod II PPIMV the same way as on a 50 watt plexi? Or do I have to change anything because the resistors after the phase inverter are 100K on the 6v6 instead of 220K on the 50 watt?
The Hoffmann layout is here:
http://el34world.com/Hoffman/files/Hof ... 6-V2.pdf
The Valvestorm layout for the 50 watt is here:
http://www.valvestorm.com/Amp Mods/PPIMV
Thanks so much!
Mike
I am working on a Plexi 6v6 build using the Hoffman 6v6 as a guide. I would like to add a PPIMV, and I am really impressed with the Rich Mod II PPIMV using a PEC 500K dual ganged pot as used by George Metropolous.
My question is this - on a standard 50 watt plexi, using a Rich Mod II PPIMV, the 220K resistors stay in place on the board and a 500K dual gang pot is used. On the Hoffman 6v6 layout, the board resistors after the caps that follow the phase inverter are 100K. Can I still use a 500K dual gang pot and wire the Rich Mod II PPIMV the same way as on a 50 watt plexi? Or do I have to change anything because the resistors after the phase inverter are 100K on the 6v6 instead of 220K on the 50 watt?
The Hoffmann layout is here:
http://el34world.com/Hoffman/files/Hof ... 6-V2.pdf
The Valvestorm layout for the 50 watt is here:
http://www.valvestorm.com/Amp Mods/PPIMV
Thanks so much!
Mike