I dispose of an older micro processor timer Kit K1682 with the old TMS1100NLL chip.
The problem I have is that, pushing the switches, the concacts bounce and give a series of impulses. Cleaning the switches is impossible.
Is there a way in retarding the impulses so that one push gives only one entrance by adding or renewing some elco
Thanks in advance
Sorry, this item has been obsoleted in 1992, that’s 20 years ago, so I’m afraid we cannot support it anymore.
Anyway, the buttons most likely need replacement. They seem to be available from your Velleman distributor.
http://www.velleman.eu/products/view/?id=5824