Musicaid Clap Trap
There are very few analogue Clap Traps in existence. Famously-used (and abused) by Throbbing Gristle and The Human League among others...
Sonically it offers a wide range - from huge oceanic crashing waves of noise to rhythmically-challenged helium finger pops (thanks, Ensemble control) - there's also occasional near-realistic electronic claps in amongst the myriad options. This is a very early unit and is pretty wild compared to the later ones - some ear-piercing resonance at higher settings make this a contender for serious techno-abuse.
It's for sale serviced and in excellent working order. The condition of this unit is pretty exceptional as well - it has only has one scuff on the front; the rest of the casing has a few minor scuffs and some off patches of minor oxidation only. Click on the photos to zoom in.
240v unit.
Check the YouTube demo of a later Simmons unit we sold in 2013 - they'd tamed/refined it a bit by then: the one for sale here is definitely wilder and we'll get a demo of it up soon.
It is always possible with vintage equipment that crackly pots/sliders may develop over time when equipment has not been used - even during shipping - this can usually be easily rectified either by a few turns or in extreme cases, with suitable switch-cleaning spray.