![](http://geekworldliving.com/gwl/wp-content/uploads/2017/08/IMG_0902-150x150.jpg)
I’ve been wanting to build a stand-alone analog synthesizer using the TI SN76477 integrated circuit since I was fourteen years old. Back in 1978 that’s when Texas Instruments released the “complex sound generator” that was used in the Space Invaders…