sonolink
Well-known member
Hello,
I built a clone of a Fender Showman preamp section (also known as Alembic Bass Preamp F2B) for a bassist friend of mine. He wants to use it as a distortion/overdrive/coloring pedal. The unit has a gain control and an TMB stack.
He is very happy with it except for the fact that it has a lot of gain compared to his other pedals/stompbox preamps and would like to be able to level the output.
This is the circuit: http://moosapotamus.net/images/AlembicF2B_SCH.gif
I'm using a switched power supply that provides a B+ of 190V, and 6V for the heaters.
My question is: what would be the right approach? A "Master Volume" control at the output? Would that be a 1M pot connected after R9 on pin1, the wiper connected to the output jack and pin3 to GND?
Thanks for your time and help
Cheers
Sono
I built a clone of a Fender Showman preamp section (also known as Alembic Bass Preamp F2B) for a bassist friend of mine. He wants to use it as a distortion/overdrive/coloring pedal. The unit has a gain control and an TMB stack.
He is very happy with it except for the fact that it has a lot of gain compared to his other pedals/stompbox preamps and would like to be able to level the output.
This is the circuit: http://moosapotamus.net/images/AlembicF2B_SCH.gif
I'm using a switched power supply that provides a B+ of 190V, and 6V for the heaters.
My question is: what would be the right approach? A "Master Volume" control at the output? Would that be a 1M pot connected after R9 on pin1, the wiper connected to the output jack and pin3 to GND?
Thanks for your time and help
Cheers
Sono