Dekatrons.
The UK The National Museum of Computing (TNMOC) at Bletchley Park has restored the Witch Dekatron computer.
It uses a lot of Dekatrons!
"the stores ¨C nine boxes each containing 80 Dekatrons and associated
components."
That is 720 Dekatrons!
I visited in 2016 - it still works. Most impressive!
Web page:
<>
Well worth a visit to TNMOC - it also has the working Colossus.
To keep it on topic, they were using HP logic analysers for
maintenance.
Bletchley Park of course is famous for WW2 code breaking.
You can see Enigmas, Bombes etc.
A pleasant train ride from London but ...
after one days visit you will find that you
need at least another day.
Dean
