Unusual ZM1040 Tube

Paul Parry

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Apr 27, 2016, 3:43:35 PM4/27/16

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Hi All,

Saw some of these ZM1040 tubes for sale, and I have no idea what they are, definitely not Nixies though - any ideas..

Hoping you can shed some light. It has 9 pins and is internally silvered - possibly a rectifier?

Cheers,

Paul

IMG_8509.JPG

Nicholas Stock

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Apr 27, 2016, 3:46:03 PM4/27/16

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Mirrored all the way around?

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gelu_b

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Apr 27, 2016, 3:49:44 PM4/27/16

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Hi Paul,

I'm interested to buy them. How many are and what is the unit price?

Regards,

Gelu

Dieter Waechter

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Apr 27, 2016, 4:15:18 PM4/27/16

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Hi!

That's a wrong labeled ZZ1040.

Dieter

John Rehwinkel

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Apr 27, 2016, 5:19:34 PM4/27/16

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> Saw some of these ZM1040 tubes for sale, and I have no idea what they are, definitely not Nixies though - any ideas..

Dieter's right, it's a mislabled ZZ1040.

> Hoping you can shed some light. It has 9 pins and is internally silvered - possibly a rectifier?

From memory, it's four neon voltage regulators in series. I'd love to obtain one.

- John

Tidak Ada

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Apr 27, 2016, 5:24:37 PM4/27/16

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ZM 1040 is a stabilizer tune equivalent to the Stv 100-60 (see datasheet)

eric

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ZZ1040_eBay.pdf

Tidak Ada

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Apr 27, 2016, 5:27:34 PM4/27/16

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Oops, it’s a ZZ1040 Dieter’s right

eric

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Paul Parry

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Apr 28, 2016, 3:06:39 AM4/28/16

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Hi Nick, Yes completely mirrored.. I got them Sale or return so I guess I will return them!

Paul Parry

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Apr 28, 2016, 3:12:31 AM4/28/16

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Thanks for your help guys, a ZZ1040 it is then!

I was having a hunt for some Nixies and came across Billington Export https://web211.secure-secure.co.uk/tube-and-valve-electronics.co.uk/wholesale/basket.asp they have quite a few Nixies listed (although the Zm1080 are now gone!) I also got some odd Dekatrons that divide by 12 rather than 10, which I have never seen before either! Shame that those ZM1040's were not Nixies as the wholesale price was £18 each.. which is pretty good for NOS..