Pandicon

[artg...@gmail.com]

CuriousMarc has just released a video of a calculator repair involving eightron 7-segment neon tubes, which he mentions are very rare but fairly similar in appearance to Panaplex multi-digit tubes.

I see that Langrex, a UK surplus supplier specialising in valves has somewhat similar Pandicons in reasonable quantity, which may be useful to someone.

https://www.langrex.co.uk/products/zm1500-vintage-12-digit-nixie-display/

-adrian

 

[Audrey]

I got my hopes up for a different kind of Pandicon but that's a good deal for some zm1500, there's some on ebay but without the sockets.

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[Robert]

Thanks

Rob

On 5 Oct 2022, at 18:09, Audrey <tntm...@gmail.com> wrote:



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[gregebert]

Is the Pandicon multiplexed, or does it use some kind of clever storage/shifting ?

[Dekatron42]

It's multiplexed, simple design example here: https://www.radiomuseum.org/tubes/tube_zm1206.html

It's important to adjust the bias voltages properly to limit "bleeding" between digits.

/Martin