#telephoneexchanges — Public Fediverse posts

Now this is a nice find!

I've been passed a scan of a notebook from the late 1950s containing details of all the #telephoneExchanges in the UK

This sort of information was used by #telephone enthusiasts (UK #phreaks) to navigate their way around the toll (trunk) network

There were various techniques to get yourself onto a trunk, but once you were there the dialling codes in this notebook would get you anywhere in the country!

#phone #telephoneHistory #telecoms #phreak #telephoneHeritage

I bought an analogue panel meter recently that reads up to 60V DC full scale deflection. These are super handy for monitoring the supply rails in my #strowger #telephoneExchanges

What I love about this one is the tiny wee screw base lamps it uses for the scale illumination!

So smol!

#vintageElectronics #testGear #Meter #analogue #lightbulb #lamp #incandescent