Locking Leds on with momentary switch?

[posneg6]

Hi Building my switch panel using DPdt MOM centre  switches (momentarily on) for all of my 35 Peco point motors but don't want to send more wires to each point motor some of wich have accessory switches controlling the frogs. Is there a way I can keep my LEDs on the panel in the on position when I throw the momentary switch with the use of some capacitors or transistors?

I've search the web and these pages but can't find anything, any help would be appreciated or just a simple no.

reghards T

[Tony Cane]

This may be what you have in mind

 

https://www.heathcote-electronics.co.uk/point-indicator.html

 

Ther are othr makes available.

[PatB]

Sounds like what you need is a latching circuit or a bistable circuit. Try searching for those online and adapt to taste.

[Derek 19B]

Try modelling electronics do a nice PCB to latch the LEDs . Only problem is it reacts to the switch not the points.

 

derek 19b

 

There are two types ,a four way with built in Cdu and a single unit.

just a happy customer.

Edited September 12, 2020 by Derek 19B
More information

[posneg6]

3 hours ago, Derek 19B said:

Try modelling electronics do a nice PCB to latch the LEDs . Only problem is it reacts to the switch not the points.

 

derek 19b

 

There are two types ,a four way with built in Cdu and a single unit.

just a happy customer.

Thanks Derek, that just what I was looking for Brilliant 

 

[posneg6]

4 hours ago, Tony Cane said:

This may be what you have in mind

 

https://www.heathcote-electronics.co.uk/point-indicator.html

 

Ther are othr makes available.

Thanks Tony,  perfect for my needs