A voltage inverter makes positive voltages into equivalent negative voltages and vice-versa. So a +2.1V input voltage will produce a -2.1V output. It can be useful for turning an LFO signal into two signal 180 degrees out of phase with each other or creating negative versions of CV signals from envelope generators.
The jacks are mounted directly to the PCB for a wiring free build. The PCB also has mounting holes for use with external jacks.
For complete descriptions of the way the module is used, and how to build it, including schematics and parts list; download this PDF file.
Boards are available now. Price for 1 PCB is $8.
Unfinished eurorack
panels are available for this project, they are 4HP and cost $7 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.
