Original info:
“ZUUL is the most transparent noise gate on the market! Studio quality specifications with simple straight forward operation. The ZUUL’s threshold knob also controls the dynamics of the gate
circuit. Perfect for guitar, bass or any signal source as it has studio
quality specifications. Use in front of an amplifier or in a series
effects loop. Dual colour LED for visual feedback gating action: Green =
Open, Orange = Closed, Off = Bypass. The KEY input signal can be
directly from your guitar (ex. split from ROACH or SPLIFF) or other
signal source which lets you go from clean to high gain without changing
the Threshold knob. This powerful feature lets you control the gate
with a different signal than what flows through the input/output jacks
of the ZUUL. Side switch or internal jumper to change the threshold
range if you are injecting a large signal into the input and not using
the key input“
You can find PedalPCB’s schematic, info and pcb on their website here.
