Pictures of the latest creation.  Runs with 4 oscillators (wired as two pairs), volume control, 1/4" output jack, standard 2.1mm 9VDC supply power (low mA draw). Delay is outfitted with a delay time control and also a repeat control. 

Together, both circuits complement each other and endless drones and textures are created.  I will post a video later.

The industrial finish makes for a nice clean look, I will change the hardware soon.