NIMO Tubes on ebay

[Tyler Bourne]

Noticed a few NIMO tubes on ebay recently.

NIMO Tube

NIMO Tube

Too bad they tend to be so expensive.

[Nicholas Stock]

Saw those too......ouch!

Maybe someone should start making those again.....said nobody....:)

I wonder what ridiculous prices we'll see in 2020?

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[Jon Jackson]

One also has a digit burned into the phosphor.

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[Tyler Bourne]

Even if someone did try to recreate these they would probably cost even more.  I love NIMOs for their impressive overcomplication of a simple task.

[Mike Mitchell]

On Friday, January 3, 2020 at 3:08:23 PM UTC-5, Tyler Bourne wrote:

Even if someone did try to recreate these they would probably cost even more.  I love NIMOs for their impressive overcomplication of a simple task.

I'm in the process of building a "nearly NIMO" clock, following the instructions here: https://www.hackster.io/paul-bricmont/nearly-nimo-clock-9309ec  I'm using a different processor and my own software though.

 

[gregebert]

I've wondered about using small CRTs, such as the 3L01I, to emulate a NIMO . Back-burner project for me.

LCD/OLED  allows you to mimic any kind of display/font/color/language and no worries about un-obtaianble display devices.

[Nicholas Stock]

LCD/OLED kind of defeats the point though no? CRT’s would be the way to go.....

Sent from my iPhone

On Jan 5, 2020, at 07:08, gregebert <greg...@hotmail.com> wrote:



I've wondered about using small CRTs, such as the 3L01I, to emulate a NIMO . Back-burner project for me.

LCD/OLED  allows you to mimic any kind of display/font/color/language and no worries about un-obtaianble display devices.

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[Nicholas Stock]

Maybe I should mention that such a project maybe underway by someone I know....ahem ahem.

Codename 'SAAG'. Prototype is functioning. Will drive 1 inch and 2 inch CRT's, and maybe 3 inch. Multiple of them.

Stay tuned.

[Jon Jackson]

Nice hint for the New Year !!!

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[Mac Doktor]

On Jan 5, 2020, at 2:12 PM, Nicholas Stock <nick...@gmail.com> wrote:

Maybe I should mention that such a project maybe underway by someone I know....ahem ahem.

o.o

Codename 'SAAG'. Prototype is functioning. Will drive 1 inch and 2 inch CRT's, and maybe 3 inch. Multiple of them.

Stay tuned.

O_O

Please tell us which tubes to start hoarding before the prices triple. I only have one or two NOS (some MIB) CRTs in the 1" to 3" range. Back in the '90s I was buying them left and right at hamfests for five or ten dollars.

I also want the CRT clock that uses curved vectors instead of rastering. Drool.

Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com/

“The book said something astonishing, a very big thought.
It said that the stars were suns, only very far away.
The Sun was a star, but close up.”—Carl Sagan, Cosmos, 1980

[Nicholas Stock]

Well, currently, it will drive regular (non-PDA) small electrostatic deflection CRT's. I will let my partner in crime chime in if he wants to add anything more specific....

Cheers,

Nick

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[John Rehwinkel]

Well, currently, it will drive regular (non-PDA) small electrostatic deflection CRT's. I will let my partner in crime chime in if he wants to add anything more specific....

I'm quite interested.  I have a few such boards and am designing some of my own, this is a subject dear to my heart.  Let me know if you want design reviewers, beta testers, etc.

Cheers,

John

[Terry Kennedy]

On Friday, January 3, 2020 at 3:08:23 PM UTC-5, Tyler Bourne wrote:

Even if someone did try to recreate these they would probably cost even more.  I love NIMOs for their impressive overcomplication of a simple task.

The Soviet-era ITS1-A is an even more bizarre tube, but there seem to be more of those floating around. I have a 6-digit ITS1-A clock from one of the designers here, and a couple of the single-tube demo boards that the VTA made a limited run of a few years ago.

Some things that seemed bizarre in the early 60's jump-started whole industries - for example, the primitive integrated circuits designed for the Apollo space program led to modern IC technology. Display devices had a similar explosion of types and designs, but very few of them had much impact. Nixies (defunct except for hobbyists), Numitrons (defunct except for very few niche applications), VFD, LED and LCD are really the only major ones I can think of (and 2 of those are defunct).

It may be that the nimo was designed for applications where the high voltage was already available as part of some other component. IEE did sell power supplies, but that seemed to be more for evaluation purposes than to put into actual production gear. Speaking of odd combinations, I believe the type 6977 VFD was designed as a logic level indicator for vacuum-tube computers.