What kind of expression pedal works with the Analog Heat +FX?
I recently learned the hard way that there is no universal standard for expression pedals, and that things I thought would play well together actually don’t. For example, Eventide and Strymon expression inputs expect 10k and 50k resistance respectively. I bought some OBNE expression pedals which are advertised to work well with Strymon pedals but produce a logarithmic curve response in the control signal when plugged into an Eventide H9 or H90. (this is actually a pathway to some happy accidents but ultimately not what I was intending)
So what about the AH+FX? What specs in an expression pedal will lead to a steady, linear response?
I have a friend with access to a laser cutter/etcher, so I etched the graphics at his shop, the rest is pretty basic: drill some holes. Hand wired/soldered the parts, used some guitar volume knobs for the top; the numbers on the knob line up with the lines on the graphics from the bottom.
10k pot (or 100k depending on the device)
1k resistor, 3 wires
TRS jack
parts from nextgen guitars (diy shop)
I made 4 of them. I have one with different wiring to handle line 6 style expression inputs, 2 knobs on a single jack; and I have one with a switch instead of a knob for sustaining drones.