Mimics

Jul 13, 2004 3 Replies

I am about to start electrofrying my points. Although I have DCC I actually rather like the Hornby style sliding contact switches inna frame stylee, so I intend to use those driving mostly Peco point motors. I intend to build a mimic diagram for each frame using LEDs; I'm sure that'll be easier if I run it off 12V DC rather than 16V AC, which is not a problem.



I don't want to get into wiring in position switches unless there's a reely reely good reason for it.



So I need a simple solid-state memory circuit for the mimics. Yes, I could do it with relays (said the B.Eng Electrical[1]) but solid state is better.



My electronics skills are seriously rusty, so can anyone recommend a source for a suitable circuit diagram please, preferably using a few LSIs for the memory to get the component count down?



Thanks.


[1] A group of us were going to build a JK flip-flop with RRL (Relay-Relay Logic) for one of our lecturers, but we never got that elusive Round Tuit

Guy


That should be fun, what kind of points are they? Electrofrog or Insulfrog?

'Cos if they're electrofrog this is very easy to do.

Keith Make friends in the hobby. Visit Garratt photos for the big steam lovers.

"Keith Norgrove" wrote

Ke? It's just as easy to electrify an Insulfrog as an Electrofrog point!

John.

Electro-frogs are easier to fry than insul-frogs? Care to share you recipe?

Regards, Greg.P.

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