I'm also interested, depending on price.

Thanks,

Michael Sangster

On Monday, October 20, 2014 4:06:34 PM UTC-5, Walter2 wrote:
>
> These are the same glass diameter as the common B-5092/8421 nixies (not as 
> tall), but instead have a circle of 10 digits on the face, 0-9 clockwise, 
> with zero at the top. 
>
> Unlike Nixies, more than one digit can be on at the same time (if cathode 
> resistors are used, rather than a common anode resistor).  They need only 
> +150VDC, and very little current.  The digit is small, but the appearance 
> is very interesting, like a Dekatron, but with digits rather than dots. I 
> don't ever recall seeing them used in any commercial gear, but presumably 
> they did appear someplace, maybe another list member has that info.  They 
> can be used as status displays to show up to 10 data items at the same 
> time. They can almost be used as a single tube for hours as well, because 
> two digits can be on at one time (1+0 to show 10, but NOT 1+1 to show 11, 
> 1+2 to show 12, for example), a novel and more "clock-face-like" 
> appearance, but not really ideal. 
>
> The base is a non-standard 13 pin (3 center pins, outer circle of 10), so 
> I have no hope for sockets, but clearly loose pins will work fine to a 
> PCB.  Because the numbers appear to race around the outer diameter of the 
> tube when cycled, they would provide very attractive seconds/minutes 
> displays in clocks. Driving is dead simple, ground the cathode to light, 
> just as with regular Nixies, but less current is required (larger 
> resistor).  Because more than one can be on at a time, fading is possible 
> to enhance motion. There are also simliar tubes from Philips in europe, but 
> their drive is quite complex, and they are not interchangeable with these. 
>
> Anyway, I will have them posted up to Sphere Research shortly, or you can 
> just email me for more details. I have the factory data sheet as well, and 
> I will email the PDF to anybody interested.  They will be quite cheap, but 
> there's only this one single batch available, no more stock after this, and 
> frankly I was surprised to get these. The appearance of this batch is 
> excellent.
>
> all the best,
> walter ( walter2 -at- sphere.bc.ca )
> sphere research corp. ( www.sphere.bc.ca )
>

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