#UAX13

2023-11-01

Look Mum No Computer has been rearranging his #UAX13 #strowger #TelephoneExchange to make better use of the space and squeeze in a couple more racks.

It’s a substantial effort to go to, must have been a busy week, but it looks like they got quite a lot done!

m.youtube.com/watch?v=tK1lH8pj

One day I’ll make the 6hr drive to go visit…

#telephone #CentralOffice #telecoms #TelecomHistory #LMNC #phreak #Phreaking #ElectroMechanical

2023-04-15

Another day at the #DeanForestRailway working on the #UAX13 #strowger #ElectroMechanical #TelephoneExchange … today I was changing the strapping on the vertical marking bank (VMB) for some group selectors.

The VMB is used when the selector moves vertically, to allow/deny access to certain levels.

Here I converted a selector that allowed (89)xx to allow (34567890)xx

This changes it from serving our museum demo phones to be suitable for use as an incoming selector from a distant exchange.

Before: Close up of 22 solder tags that make up the VMB of a 2000 type group selector - lots of contacts are strapped together to deny access to most levelsAfter: Close up of 22 solder tags that make up the VMB of a 2000 type group selector - fewer contacts are strapped together to allow access to most levels
2023-04-12

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

Wide shot of racks of electromechanical telephone switching equipment.

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