Nixie Tube Modem Test Set

[Mac Doktor]

Man, these are some tiny Nixie tubes:

https://www.ebay.com/itm/234984502416

How many are in there? It looks like three (with zero being a possibility). The unit is pretty wide and it's hard to picture the scale.

Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com

“...the book said something astonishing, a very big thought. The stars, it said, were suns but very far away. The Sun was a star but close up.”—Carl Sagan, "The Backbone Of Night", Cosmos, 1980

[Dekatron42]

To me it looks like there are three B54XX-something Burroughs Nixies from the looks of the sockets.

/Martin

[Mac Doktor]

On Apr 23, 2023, at 1:45 PM, Dekatron42 <martin....@gmail.com> wrote:

To me it looks like there are three B54XX-something Burroughs Nixies from the looks of the sockets.

I looked at the photos and never spotted the tubes! This thing is big on the inside.

Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com

"If only you could see what I've seen with your eyes."—Roy Batty, Blade Runner

[Audrey]

I think they're zm1000

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[Dekatron42]

I really do think it is a Burroughs B54-something.

If you take a careful look at the last photo you can see the black socket

And compare it to this photo from Dieters webpage (rotated 180 degrees)

so I think it is a Burroughs socket and a Burroughs B54-something Nixie.

Even the top mica sheet is cut the same way as the Burroughs types.

/Martin

[Audrey]

I see it now, I thought that B was some other symbol

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