“From the tech:
“Ensemble makes constant drone noise, lowest D#. When tremolo is on the signal is cut.
Pin 20 of IC on Module 7 has been disconnected. It is internally shorted to pin 19, causing tigger/decay circuit of D#1 to not function. IC on module 2 needs replacing. Part cannot be easily found besides 2nd hand (ebay, etc). AMI S10430 Divider-Keyer. D#1 trigger line still connected to module 4. Needs S10430 IC.”” Click here to visit listing on eBay
“Vintage
1979
KORG Lambda ES-50
Polyphonic
48-key
Synthesizer
In Good Condition
Used
Tested” Click here to search for synths on eBay
“All functions are working. The unit has some signs of age but overall in great condition!! All keys, sliders, knobs and buttons working well. Tested before listing. Please see pictures” Click here to search for synths on eBay
“This listing is for one Korg Lambda vintage synthesizer. It is working great and other than some scratches here and there, looks good too. There are not many Lambdas out there, an unfortunate fact as they are well-equipped at performing 70s/80s polysynth sounds, Solina-like stringsynth pads and 70’s-esqe synth-clavs, pianos, etc. The sound is very similar to the PS-3100/3200/3300 range of synths. Good luck and happy bidding!”
Click here to search for synths on eBay