Studio Electronics Tonestar 8106

Rack rash, works good, comes with ribbon.

From perfect circuit audio:

The Studio Electronics 8106 is a self-contained synthesizer voice inspired by the Arp 2600. The module excels at baselines and leads and features the Jupiter to Juno -6dB/Oct high-pass filter, a classic Roland IR3109 filter chip, an analog VCO, dual envelopes, and a voltage controlled LFO.

TONESTAR 8106 FEATURES

ARP 2600 modelled synth voice
Full featured VCO
Saw, Triangle, Square and Sub waveshapes
"Jupiter to Juno" filter from Tim Caswell
27 knobs, 21 jacks
Two envelopes
Voltage controlled modulation LFO