Replacing Switches (Caution! Nerdy)
Not satisfied with being hip-deep in projects I am looking into replacing the lamp and water-pump switches in Quicksilver with membrane touch switches. They glow orange with about 1.5 ma current, and ...
Forum Discussion
That's me. Beast
The membrane switch is about 1/4 deep and has sort of an un-earthly orange glow. Good for 30ma@ 5 volts. The membrane is 5mm which is plenty thick to resist wear-through. I would imagine non ammonia window cleaner to remove smudges.
I like the idea of fishing a jacketed stranded 24-gauge pair from the circuit board (adjacent to the lamp overhead).
Yes, a latching circuit is called for. And thank you for the recommendation.
The water pump circuit is going to need a serious flyback network and this is where those 17 volt ultra-fast (2ns) TVS are going to earn their pay. I purchased some 1-watt 1-Kohm resistors for load-side pull downs.
I am working with 24 volts so entry into the lamp means dealing with a voltage regulator circuit or leaving them as is - 2 12-volt lamps connected in series.
All because I stumbled across a "deal": 33 membrane switches, with stainless steel fascia for $20.00 (haggled) and seven fifty to ship from Mass. I suspect the gizmos are military surplus.
The clicky now workee. I bookmarked it.
The membrane switch is about 1/4 deep and has sort of an un-earthly orange glow. Good for 30ma@ 5 volts. The membrane is 5mm which is plenty thick to resist wear-through. I would imagine non ammonia window cleaner to remove smudges.
I like the idea of fishing a jacketed stranded 24-gauge pair from the circuit board (adjacent to the lamp overhead).
Yes, a latching circuit is called for. And thank you for the recommendation.
The water pump circuit is going to need a serious flyback network and this is where those 17 volt ultra-fast (2ns) TVS are going to earn their pay. I purchased some 1-watt 1-Kohm resistors for load-side pull downs.
I am working with 24 volts so entry into the lamp means dealing with a voltage regulator circuit or leaving them as is - 2 12-volt lamps connected in series.
All because I stumbled across a "deal": 33 membrane switches, with stainless steel fascia for $20.00 (haggled) and seven fifty to ship from Mass. I suspect the gizmos are military surplus.
The clicky now workee. I bookmarked it.
