#phoneexchange — Public Fediverse posts

Are you really really REALLY bored and want 500ish pages listing all the parts/cable/equipment that was available for a BT engineer to order through the British Telecom Stores department in 1996?

Then my friend, I have you covered:
https://downloads.paulseward.com/Telephony_Catalogues/BT-Stores-1996/

Have at it folks, tag me if you find anything weird/amusing

#britishTelecom #telecomsHistory #TelephoneHistory #telecomsHeritage #telephoneHistory #telephone #phone #phoneExchange #telephoneExchange

Are you really really REALLY bored and want 500ish pages listing all the parts/cable/equipment that was available for a BT engineer to order through the British Telecom Stores department in 1996?

Then my friend, I have you covered:
https://downloads.paulseward.com/Telephony_Catalogues/BT-Stores-1996/

Have at it folks, tag me if you find anything weird/amusing

#britishTelecom #telecomsHistory #TelephoneHistory #telecomsHeritage #telephoneHistory #telephone #phone #phoneExchange #telephoneExchange

Are you really really REALLY bored and want 500ish pages listing all the parts/cable/equipment that was available for a BT engineer to order through the British Telecom Stores department in 1996?

Then my friend, I have you covered:
https://downloads.paulseward.com/Telephony_Catalogues/BT-Stores-1996/

Have at it folks, tag me if you find anything weird/amusing

#britishTelecom #telecomsHistory #TelephoneHistory #telecomsHeritage #telephoneHistory #telephone #phone #phoneExchange #telephoneExchange

Are you really really REALLY bored and want 500ish pages listing all the parts/cable/equipment that was available for a BT engineer to order through the British Telecom Stores department in 1996?

Then my friend, I have you covered:
https://downloads.paulseward.com/Telephony_Catalogues/BT-Stores-1996/

Have at it folks, tag me if you find anything weird/amusing

#britishTelecom #telecomsHistory #TelephoneHistory #telecomsHeritage #telephoneHistory #telephone #phone #phoneExchange #telephoneExchange

Are you really really REALLY bored and want 500ish pages listing all the parts/cable/equipment that was available for a BT engineer to order through the British Telecom Stores department in 1996?

Then my friend, I have you covered:
https://downloads.paulseward.com/Telephony_Catalogues/BT-Stores-1996/

Have at it folks, tag me if you find anything weird/amusing

#britishTelecom #telecomsHistory #TelephoneHistory #telecomsHeritage #telephoneHistory #telephone #phone #phoneExchange #telephoneExchange

@ety my shenanigans are mostly on much older kit than your average home lab phone setup (#electromechanical #strowger!)

My preference for phone kit is “massive, heavy, and maintained with a spanner” 😂

I just throw a ton of tags at it (usually as many relevant ones as I can fit in the post) #TelephoneExchange #phoneExchange #pbx #vintagePhone are probably my most commonly used.

I’ve been hanging out with @CuTEL a bit over the last couple of years, so I also have some more modern #voip & #dect

Ok #vintageElectronics nerds! tell me about these things…

The “MR” designation denotes some kind of diode (it stands for Metal Rectifier, a notation hangover from before silicon/germanium diodes) and they’re obviously arranged as full bridge rectifiers

They’re in a PSU made for the British Post Office in 1972

The brown stripe seems to denote the + end, but what does the other stripe mean?

#Electronics #TelephoneExchange #Telephone #phone #phoneExchange #strowger #hamRadio #AmateurRadio

The #strowger #phoneExchange is in the van, and headed to #emfcamp #emf2024

My #strowger #PhoneExchange installation for #emf2024 is as fully working as it’s going to get… so out come the packing crates!

I’ve got 48hrs to pack it all up before the van arrives…

Packing Progress:
🟩🟩🟩🟨⬜️⬜️⬜️⬜️⬜️⬜️ 29%

I've made another video about getting the #strowger #TelephoneExchange ready for me to take it to #emf2024

In this episode, I try and get the tie lines working...

https://youtu.be/tJ9UP861z6E

Oh, and what's that? There's now a website with more information about the #phoneExchange and a blog and everything?

https://emf.lpbk.net/blog/posts/2024-05-05/

The site is a work in progress, and will change a /lot/ in the run up to the event.

RSS feeds are on the todo list, but I've got a phone exchange to fix first!

found an annoying fault on the #strowger #phoneExchange - see that little pin just hanging out there at a jaunty angle nestled amongst the contact springs?

It’s a lifting pin for the contacts at the top of the pile, it’s supposed to be straight, and attached to one of the contacts.

Instead, it’s not lifting anything and is wiggling around connecting things that shouldn’t be connected.

I guess now I get the fiddly job of replacing the stack of contacts without breaking any 70 year old wires!

If I’m going to run a #stowger #telephoneExchange at #emf2024 I need to be able to connect phones to it…

https://m.youtube.com/watch?v=xH19vujR4U4

#emf #telephone #phone #phoneExchange #electroMechanical

I’ve now done two of those RJ21s (terminated by hand with a screwdriver) then terminated on the 5 krone strips at the top of this boxconn, then the 4 x RJ45 sockets are terminated on the bottom 2 strips.

Two of the RJ45s will go to a Cisco 1760 fitted with 4-FXO/4-FXS ports, that will connect to the rest of the phones at #emf2024

The other two RJ45s will go to 8 demo #phones for people to play with!

One step closer to having the #strowger #phoneExchange ready to go camping!

I’ve decided on my Easter weekend project… I need to swap the position of two #phoneExchange cabinets in my shed, so I can set up the one I’m taking to #emf2024 as though it’s installed on-site

I’ve measured, it’s possible… but involves moving about 15 heavy crates full of GPO relays, 7U of network equipment, 2 #strowger exchanges, an #isdx PABX, several reels of cable and other miscellaneous stuff I’ve forgotten about!

Perhaps this needs to be a time lapse video of some kind

AC14 (2280Hz) Signalling Demo Progress…

The wiring between the relaysets is done with the exception of the connections that go to the #phone end, the #phoneExchange end, and the 4-wire circuit between the two ends of the link.

So, 9 wires remaining then I can start powering it up… but first, I need to find a suitable method of terminating those connections that allows me to add in annamplifier/speaker so you can hear the tones.

It’s back to the sketchbook and eBay searches!

#strowger #phreak

If you're interested in this sort of thing (and who wouldn't be?!)

The whole notebook full of late 1950s UK telephone routing codes is online as a pdf here: https://paulseward.com/downloads/Telephony_Phreaking_Archive/TLA-FDY-TKZ.pdf

An OCR version will follow at some point in the handwavy future when I get around to it (if I don't forget).

#phreaking #preak #telephoneExchange #strowger #phoneExchange #telecom #telecoms #telecomHistory #telecomsHistory #phone #telephone

Christmas at Haywards Heath Telephone exchange 1953

Lots of paper garlands and decorations adorning the CB10 switchboard here, but if you look closely there are paper santas/elves hanging from the cable turning sections where the positions wrap around the corners of the room.

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #PhoneExchange #TelecomsHistory #telecomHistory #switchboard #operator

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

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

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

#Telephone #TelephoneHistory #Phone #PhoneExchange #Telecoms #TelecomsHistory

I spent today at the #DeanForestRailway working on their #UAX13 #Strowger #PhoneExchange

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!

#phones #telephone #TelephoneExchange

https://www.youtube.com/watch?v=eo69Hwqg8IA

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

This was a complete #strowger #TelephoneExchange 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.

#telephone #Phone #PhoneExchange #TelecomsHistory

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