Prototype breadboard version
playing Anamanaguchi's 'Prom Night'
A pile of version 1 boards
Board inserted into a
breadboard
Some rework carnageTesting v1 on a breadboard
Version 2 compared with
version 1. IIRC the only real changes were the removal of a resistor
from the low-pass filter and the addition of a ground pin near the
inputs.
Wiring
the SQWAK BOX into an exisiting button. This was a prank we played on a
friend.