Prince Albert (RAH)

This is a Catlinbread RAH work alike. I used a layout of the PCB by plesur at FSB Forum call the “Prince Albert”. This pedal was created to nail the Jimmy Page sound from the great 1970 Royal Albert Hall performance.

Build Doc

Specs:
BS170 Voltages
Q1 D= 5.8 G= 5.2 S= 3.7
Q2 D= 5.8 G= 5.2 S= 3.6
Q3 D= 5.8 G= 5.2 S= 3.7

Gains
Q1 VGS(ON) 2.298v
VGS(OFF) 1.580v
Q2 VGS(ON) 2.364v
VGS(OFF) 1.637v
Q3 VGS(ON) 2.305v
VGS(OFF) 1.584v