Gieskes Pieper

Pieper is a simple sine wave generator circuit powered off a 9volt battery. Based off a broken or very oddly designed drum circuit, the Pieper generates a sine wave between 786Hz and 3.4kHz. Wonderfully simple with just a single potentiometer controlling the pitch and one button for triggering the sine wave. Use it to trigger blips and bleeps, or send it through effects—be creative!

Pieper Features

• Sine wave generator with simple interface
• Battery powered (9v)
• Frequency response of roughly 786Hz–3.4kHz
• Simple and hackable design
• Carry it around in your pocket

The Eurorack version also has a cv input for pitch/activation, 0v should give no sound.