I have a prototype crossing signal that I have pieced together from purchases here and there and would like to get it to work just like the real thing. I understand that it requires a flasher circuit chip called a 555CN Timer IC to get the lights to alternate but I am not sure as to how to wire this up since I am not electronic literate. Each of the four bulbs is a 10 volt bulb and naturally two of them must be on at the same time to properly flash and the IC regulates the speed of the flash somehow. I don’t want an automotive flasher since that would not be realistic. I am a model railroader who would like to set this up as a display in my backyard. Any help would be much appreciated.
The 555 IC chip in and of itself won’t do the trick for you - you’ll need other components to control the cycle rate and relays to handle the actual load of the bulbs. If you’ve got an electronics shop (not RS) in the area, they might be able to help you (or at least put you on someone who can), or you might look up your local amateur radio club.
In the meantime, the 537 automotive flasher does alternate, albeit not correctly, and would at least get you ‘on the air’ until you get a flasher built.
Another thought would be a police-type headlight ‘wigwag’ - Code 3 makes one that you can use for about $39.99. This is a relay-based wigwag and not solid-state - it can certainly handle the power flow for the lamps.
I actually have one of these that I pulled out of my car some time back - my car is an old police car.
Sorry not to post sooner but I wanted to give others a chance to respond in case they had a more detailed explanation. Thnaks for your help guys.