NoisyFruitsLab OT1

The EcoLab Audio OT1 is a practical synthesizer tuner and oscilloscope at only 4HP in size.

The output is a buffered sibling of the input and is used to loop through the input signal. The level to the oscilloscope can be regulated by means of a potentiometer and there is another small potentiometer on the main board, which is used to adjust the level to the tuner.