Thanks for the advice g1. What I hadn't spotted when I first posted is that although there's no way of switching channel from the amp controls there is an LED on the top of the amp that shows when the dirty channel is switched in. It's not quite as handy as having the light on the footswitch, but it works fine and the amp is both sounding (and looking) great.

Hi All,

I'm trying to resurrect a Peterson P75G (1980s transistor combo), and it's working and sounding great but lacking a footswitch. The P75G has two preamp channels, one for clean and one for distortion, but there's no way to switch between them using the control panel. The only option is via a footswitch into a 1/4" jack on the back.

I've tried a simple single pole jack and it works fine, but I'd like some kind of visual feedback (an LED) to show whether or not the switch is enaged or not. Does anyone know if there's a standard footswitch available I can use with the Peterson?

Thanks.