Check out the Powertran Transcendent Polysynth at :21.
“Saturday 7 October saw the UK’s biggest synthesizer event return to Sheffield for its second year. Organised by Sound On Sound magazine, Synthfest UK is a celebration of all things synth, with an exhibition hosting manufacturers, retailers and universities, as well as a seminar programme
“Legendary 70’s synth. The Transcendent 2000 was one of the first commercially available synths to be available to the public. It was sold as a kit and this one was built by myself. It was never used in anger and was put away with other band gear in a store room. Now I am having a clear out and it’s up for sale.
“This vintage analogue synth from 1970/80 is in full working order. There were a number of faults which required attention. A number of ICs and a transistor were replaced. The whole synth was then re-aligned according to the instructions in the manual, using a digital oscilloscope. The whole system was then tested and is now working perfectly.#