is_that_smoke
- Nov 19, 2016
- 2
- Joined
- Nov 19, 2016
- Messages
- 2
I have a SP 2 way retractive switch centre off that operates points on a model railway I’m building these only require a momentary pulse to change over. I want to add indicator lamps to this and have some pulse operated change over latching relays so they would give me a permanent supply to the indicator lamps. I have tried this and it works.
I was wondering if I can supply these from the same switch and if so what type of diode can I fit to stop the supply coming back onto the opposite switch terminal and triggering the points.
I have sort of done a drawing I hope helps explain.
The relays can use anything from 3V – 12V to latch so any volt drop across the diode is not a great problem.
I was wondering if I can supply these from the same switch and if so what type of diode can I fit to stop the supply coming back onto the opposite switch terminal and triggering the points.
I have sort of done a drawing I hope helps explain.
The relays can use anything from 3V – 12V to latch so any volt drop across the diode is not a great problem.