Yamaha PS-3 keyboard through a Korg Monotron Duo and Boss TE-2 Tera Echo.
The Tera Echo's stereo outputs are being utilized to send one output to channel one of the Koma Elektronik field kit and one output to a small battery powered amplifier.

There is a Realistic tape recorder in front of the small battery powered amp.

There is a Library of Congress tape player plugged into channel three of the field kit.

There is a Yamaha spinning Styrofoam speaker connected to the speaker output of the Koma field kit.