Skip to main content

Like most of us, I have more 154 crossing signals than 154C contactors.    Since the 154C is hard to find and doesn't work very well anyway, I'd like to build a flasher circuit that can be triggered from an insulated track section.  I know that such devices are available commercially, but I'm hoping that someone has already built their own and could help out - both as a learning experience and to save money.  Please post if you've built your own, along with a schematic and parts list.  Thanks.

I tried searching the forum, but couldn't find anything, so if a thread already exists please post it.

Original Post

Replies sorted oldest to newest

Hi I would check with gunrunner John on this forum he sells all kinds of different electronic circuits for many different controls and dcs etc! hope this all helps you out there easy to build circuits!

https://www.youtube.com/watch?v=VMXOj8cgv98

https://www.build-electronic-c...ts.com/jk-flip-flop/

https://www.aliexpress.us/item...;utm_term=electronic circuit learning kit&msclkid=5ce3957241bf1e0ce1e9f2aa0e92415d&gatewayAdapt=glo2usa

check this out !

Alan

Last edited by Alan Mancus
@Alan Mancus posted:

Hi I would check with gunrunner John on this forum he sells all kinds of different electronic circuits for many different controls and dcs etc! hope this all helps you out there easy to build circuits!

https://www.youtube.com/watch?v=VMXOj8cgv98

https://www.build-electronic-c...ts.com/jk-flip-flop/

https://www.aliexpress.us/item...;utm_term=electronic circuit learning kit&msclkid=5ce3957241bf1e0ce1e9f2aa0e92415d&gatewayAdapt=glo2usa

check this out !

Alan

Thanks - lots of good info.  @gunrunnerjohn sells a product through Henning's, but I'm trying to do a home brew.  And although John deserves a fair return on his idea and labor, the circuit costs almost double what the typical 154 signal costs, and I'm a cheapskate.

In case anyone else is interested, the video you linked is the overview.  It took a little more digging than it should have, but the details for that circuit are here:  https://www.youtube.com/watch?v=2UcorAC1MCU

Interestingly, when I viewed your post it only had the Youtube link, but when I quoted it, a couple of additional links appeared.  (I think you edited it while I was replying)

Last edited by Mallard4468

The "Go to" device for crossing flashers for quite some time has been the LM555 timer.  This is a simple 8 pin integrated circuit chip, and is cheap and fairly easy to use.  The output of this timer chip can then be connected to transistors or relays to deliver the needed current to drive lightbulbs.  

Here is a basic circuit using LED lights:

You're looking at less than a dollar in parts here if you buy through online suppliers.

Add Reply

Post
×
×
×
×
Link copied to your clipboard.
×
×