So I've acquired this relay to add to my collection, but I'm curious about what it actually did. According to the plate, it's a GRS K DC relay. I didn't find much online, but there was a description in a Youtube video where a guy was using one as a flashing relay to run a crossing signal. Is this what it was typically used for? Is there a way to date this one? I didn't find a build date, but the cloth wire and insulation on the coils say at least 1950's.
Does anyone have any good resources on signal relays? I like collecting them. They're neat pieces of engineering that'll last much longer than any piece of software. Plus they're cheaper than airhorns.
Here are some pictures.
And here's the pinout.
Does anyone have any good resources on signal relays? I like collecting them. They're neat pieces of engineering that'll last much longer than any piece of software. Plus they're cheaper than airhorns.
Here are some pictures.
![628e6ed9-f47b-4453-8234-8e81b60d8fa1_zpsd4e69aab.jpg](http://i164.photobucket.com/albums/u26/Eboy87/628e6ed9-f47b-4453-8234-8e81b60d8fa1_zpsd4e69aab.jpg)
![IMG_4885_zps2f0b623f.jpg](http://i164.photobucket.com/albums/u26/Eboy87/IMG_4885_zps2f0b623f.jpg)
![IMG_4884_zpsfae8d3b5.jpg](http://i164.photobucket.com/albums/u26/Eboy87/IMG_4884_zpsfae8d3b5.jpg)
And here's the pinout.
![IMG_4886_zps627d6450.jpg](http://i164.photobucket.com/albums/u26/Eboy87/IMG_4886_zps627d6450.jpg)