Images of completion of modifying Jones keyer. I replaced the comparator and associated logic circuit with a differential amplifier - one of my last MC-1445s. I struggled with getting as much gain out of this circuit as I could. The gain is still not high enough but it's a start. A tricky part was the logic for on off and normal reverse. Thanks to Dave for help.
This material was created at a Signal Culture residency in 2015. This is an odd piece as throughout most of this Signal Culture residency, I kept up a core patch, making small incremental changes and recording long segments in real time playing the knobs performance like. The first piece shown here, Twist, is 6:01 and yet comes from a larger stash of work. A good amount of this was recorded with wall works in mind rather than a single channel piece, like what you see here.
A couple of years ago I hacked a few Vectrex's, 3 for a colleague and one for myself. Here is a simple documentation of how I did it.
From Wikipedia:
