ZM1030 Dual Anode Nixies Available.

[celephicus]

Greetings...

I have 4 of those Philips ZM1030 dual anode Nixies that I don't really want. Anyone want to swap them for some real Nixies, or if they are worthless they can have them for the postage.

[Jonathan Peakall]

Hey now, those are real nixies! Why don't ya want 'em? I have a clock built out of those, they are nice looking tubes. The bi-quinary aspect is easy enough to deal with.

 

Jonathan

[Adam Jacobs]

Hey, I'm interested if nobody else is. :) I'm sure I can find something in my collection to trade.

Can one of the bi-quinary masters in the group fill me in on the advantages of these types of tubes? Better multiplex, maybe?

-Adam

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[Tom Harris]

I have too much junk. If I have something on the shelf for too long, I get rid of it. Since I am not that into nixies, I can't be bothered to construct the required drive circuit to drive these beasties, so I will let them go to someone who is.

Interestingly enough. there were computers built in the 50's that actually used biquinary representation internally (Wikipedia informs me that Colossus did too!). Maybe this use persisted in digital logic up to the point Philips designed the tubes, but probably they just wanted to use standard 9 pin bases.

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Tom Harris <celep...@gmail.com>

[threeneurons]

One advantage that biquinaries still have, that they use a common 9-pin socket, that you still can get easily. But their real advantage disappeared with wide use of ICs. Back when circuits used discrete parts, then driving a set of bi-quinaries would use fewer parts. Think a flip-flop, and a 1-of-5 decoder, or a 1-of-5 ring counter. A regular nixie would need a 1-of-10 decoder, or ring counter. But when ICs came out, they came as 1-of-10 decoders (7441). You still needed one per nixie, if it was a normal type, or a biquinary. My first nixie clock used bi-quinaries, and it was multiplexed. It has twice as many anodes, so it was actually more complex, than if I used common nixies.

In short, if there's any project that you want to use for this type of tube, it would be an all-tube clock, or discrete transistor clock.

On Monday, July 16, 2012 9:54:28 AM UTC-7, Adam Jacobs wrote:

Hey, I'm interested if nobody else is. :) I'm sure I can find something in my collection to trade.

Can one of the bi-quinary masters in the group fill me in on the advantages of these types of tubes? Better multiplex, maybe?

-Adam

On 7/16/2012 7:23 AM, Jonathan Peakall wrote:

Hey now, those are real nixies! Why don't ya want 'em? I have a clock built out of those, they are nice looking tubes. The bi-quinary aspect is easy enough to deal with.

 

Jonathan

I have 4 of those Philips ZM1030 dual anode Nixies that I don't really want. Anyone want to swap them for some real Nixies, or if they are worthless they can have them for the postage.

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