Ain’t no snow getting in the way of pizza night!

Whilst the tech is decades old and is still being used today, already it’s on its way out.

Current iterations use Solid State Interlocking that use banks of circuit boards, like this!

And I do pretty much mean nearly all!

Here are some in Acton Town Relay Room. Round the corner from a maintenance facility designed to keep them running.

(This photo was taken by yours truly during a night of testing)

Maybe I can share some fun things I’ve seen during my days in the railway… in this context it’s Tube Time!

These are known as “Fish Tank Relays”.

And whilst they’re a dying breed, they still prop up quite a chunky part of our railways.

Nearly all of the Piccadilly Line is covered with them!

Kiddo was completely confused at his parents’ complete inability to stay upright without holding on to the fence for dear life

Also have a cat