lpbkdotnet · @lpbkdotnet
67 followers · 365 posts · Server mstdn.social

Now that Lil is allowed outside, she’s discovered my workbench in the - so I gave in and put a blanket down for her.

All projects will now include 100% more kitty, and I have to be that bit more mindful when I’m closing up for the day

#phoneexchange #strowger #hamshack #CatsOfMastodon #shed #telephoneexchange

Last updated 1 year ago

lpbkdotnet · @lpbkdotnet
67 followers · 365 posts · Server mstdn.social

Got some dirty plugs you need to clean up? You need a Bell System Plug Polisher 497A!

m.youtube.com/watch?v=PtGYEqkr

I don’t think we had an equivalent in the UK, but now I really want one!

#Phone #telecomhistory #phoneexchange #telephoneexchange #switchboard #telephone

Last updated 1 year ago

lpbkdotnet · @lpbkdotnet
63 followers · 322 posts · Server mstdn.social

I’ve spent over a year been looking for a Mk1 operators console for my

I finally got one a few weeks back, but before I start trying to wire it up to the I wanted to give it a once over, and if needed!

It all looks good, no obviously leaky caps, no battery to remove, most of the chips are date coded 1986.

I’ve put it back together, and now I can proceed with sorting out the exchange end!

#vintagephone #telecoms #telephone #Phone #getthebatteriesout #phoneexchange #telephoneexchange #isdx

Last updated 1 year ago

lpbkdotnet · @lpbkdotnet
63 followers · 322 posts · Server mstdn.social

Woohoo! I now own the right vintage kit to operate an AC-14 signalling link (UAX “out of area” exchange lines)

This signalling system relied on in-band 2280Hz tones, and although its design wasn’t quite as open to abuse as the American 2600Hz equivalent signalling, this equipment did have vulnerabilities

So, once I’ve got it working in captivity I intend to have lots of fun trying to it!

#strowger #Phone #phoneexchange #telecoms #telecomhistory #telephoneexchange #telephone #phreak

Last updated 1 year ago

lpbkdotnet · @lpbkdotnet
63 followers · 322 posts · Server mstdn.social

I'm in the process of moving a small demonstration rack on to its next home.

Before I say goodbye to it, I thought I'd video a short tour...

youtube.com/watch?v=EarxXwMvjK

#telecomshistory #telecoms #phoneexchange #Phone #telephonehistory #telephone #telephoneexchange #strowger

Last updated 2 years ago

lpbkdotnet · @lpbkdotnet
53 followers · 252 posts · Server mstdn.social

I spent today at the working on their

We’re increasing the junction capacity between Norchard and Parkend (about 3 miles away) and I needed to trace out how the existing junctions are cabled, find the existing terminating equipment, run new cables, prepare new terminating selectors…

Yesterday was leg day at the gym, so I only got about 75% done before I couldn’t cope with the step ladder any longer!

#telephoneexchange #telephone #phones #phoneexchange #strowger #uax13 #deanforestrailway

Last updated 2 years ago

lpbkdotnet · @lpbkdotnet
44 followers · 160 posts · Server mstdn.social

youtube.com/watch?v=eo69Hwqg8I

Newsreel coverage of the British Post Office launching their "mobile telephone exchange" in 1939

This was a complete built into a trailer.

It was designed to provide service if the existing exchange suffered damage (fire, storm, gas explosion etc) or as a temporary measure while an exchange was upgraded or extended.



1/🧵

#telecomshistory #phoneexchange #Phone #telephone #telephoneexchange #strowger

Last updated 2 years ago

lpbkdotnet · @lpbkdotnet
27 followers · 67 posts · Server mstdn.social
lpbkdotnet · @lpbkdotnet
38 followers · 116 posts · Server mstdn.social
lpbkdotnet · @lpbkdotnet
25 followers · 55 posts · Server mstdn.social

Are there any folk out there who have a copy of the documentation for an ancient DLI card, part No 871/2/06561/004

I want to check what signalling the 06561/004 variant supports

I've got the docs for the 06562/004 which I think is similar (but later?) car - but I'm wary of extrapolating...

I wouldn't normally ask, but please boost for reach?

#phoneexchange #telephoneexchange #PBX #pabx #isdx #telecoms

Last updated 2 years ago

lpbkdotnet · @lpbkdotnet
38 followers · 116 posts · Server mstdn.social

Are there any folk out there who have a copy of the documentation for an ancient DLI card, part No 871/2/06561/004

I want to check what signalling the 06561/004 variant supports

I've got the docs for the 06562/004 which I think is similar (but later?) card - but I'm wary of extrapolating...

I wouldn't normally ask, but please boost for reach?

#phoneexchange #telephoneexchange #PBX #pabx #isdx #telecoms

Last updated 2 years ago