Seven Segment Displays

[Tony Duell]

> 
> 
> I have eight NOS seven segment displays in a 16 pin DIP package. These
> displays have a glass cover and each of the segments have a wire running
> between the two contacts. The only markings I see are "Japan" and
> "3015-5" on the back and "C-27-09" on the side. My suspicion is that
> they are incandescent but I haven't found any information on them yet
> using Google. Does anyone know what these things are called?

The name 'minitron' seems to be floating in my brain for some reason...

They could well be incandescent. I've seen such devices in a 16 pin DIL 
package, in a smaller package with 9 socket contacts on the back arranged 
like a miniature DE9 connector (those are used in the ICL Temiprinters 
for the column display, for example), and in a wire-ended valve-shaped 
envelope. 

-tony