Video by Fryette Amps via YouTube
Source
Here it is! After tons of requests we’re extremely excited to be able to offer the new FC-3B foot switch for the PS-100. Now you can switch between channels and the FX loop on the fly! Just head over to:
https://www.fryette.com/fc-3c-foot-controller-for-power-station-one-hundred-ps-100/