Original Alps momentary switch for Roland TR-808 Start/Stop or Tap functions. I have a Limited number of these switches available - removed from a spare MC-4 key panel. Alps part number KEH10903 - these switches were used in the MC-4B MicroComposer and I've seen them in later versions of the TR-808. Originally 808s used part number KED10903 which is functionally identical, the difference being that the earlier switches have white stems and are sealed which makes cleaning & repairing them quite tricky. This later style switch is a big improvement and can be taken apart for cleaning should it become necessary in the future. These switches are a drop-in replacement, no problem with fitting the original key caps.
They have seen little use and are in excellent working condition- all have been cleaned and tested for continuity in a working TR-808. It’s almost impossible to find these switches “new” today, so if keeping your gear as original as possible is important to you they may be of interest - but be quick, I don’t know if I will have any more once these are gone.
Alternatively, I have replacement Cherry MX switch assemblies available here.
Only attempt switch replacement if you are confident you have the skills to do so. If in doubt ask a synth tech to do it for you - it’s all too easy to damage the circuit board if you’re inexperienced with soldering/desoldering.
Note: These switches are also compatible with the MC-4 MicroComposer, Boss DR-55 & similar rhythm machines and possibly other Roland equipment of the same period that uses this type of momentary switch. Check your service manual for part number.
Customer ratings for Roland TR-808 Start/Stop Switch - Original Alps
Number of ratings: 1
Average rating: 5
Excellent from Matt on 10/04/2018
Finally found a replacement switch for my TR808! Thank you thank you!! Top notch service by the way :-)