Circuit bending this second hand mini keyboard was a treat. It's a very stable instrument with tiny keys. I added a pitch control knob and some touch contacts. Low to high sweep without much fuss and the three contacts are very expressive. The main toggle jumps the keyboard from very loose into a tight sounding synth. The 2nd toggle just below is a power shelf that sputter-starves the piano tone. The 3rd toggle stage right adds a subtle vibrato boost. 1/8" output cuts the internal speaker and a power switch manages the two "AA" battery power. SOLD 10/23
