Ive not put this topic in Signalling - Overseas, as its general call for help.
I have undertaken to restore to working order , two W&T miniature ETS machines as used to be found all over Ireland. I have three such machines and hope to get two fully restored and working as a pair. None of them are pairs to begin with, so that may cause some issues
what I am looking for is help on wiring , access to knowledge etc or anyone that knows these units in whatever form.
These units have a plain galvanometer , and an integral bell push , which suggests they were powered by battery , as hand generator units had the bell push on the generator in my experience
I presume these use standard -50V DC telephone power, anyone any idea of the type of current they might draw , when the relays operated. ?, I have to rig up a suitable DC supply and the nearest common voltage is 48 V which should be sufficient
thanks in advance
Dave
Moderator Note: Topic moved to S&T Department as its more appropriate there.