Super handy and useful Synthie-Tuner and an Oscilloscope in 1U.
It´s the shrinked version of OT1 (3U / 4HP)
The tuner acts like a kind of guitar tuner, with showing the incoming note / frequency and the correct center tuning.
The output is a buffered sibling of the input.
The potentiometer adjusts the level of the incoming signal to the scope.
On the mainboard is another tiny potentiometer to adjust the level of the incoming signal to the tuner.
Suitable for Intellijel & Pulp Logic rails.