seven segment display history

[Ethan Dicks]

On Sat, Mar 01, 2008 at 04:40:02AM -0500, M H Stein wrote:
> Ethan Dicks wrote:
> > There is a vendor and part number etched on the face: Sperry SP-738.
>
> A little tricky to interface because of the high voltage, keep-alive
> anodes, etc.

Yeah... I read the specs.  I'm know about nixies and plain neon tubes,
etc., but I don't know anything about "keep-alive anodes".

> I may have some of the driver chips though if you're serious.

I would love to make this do something useful.  The display was
free (I got it in a pile of parts from a friend who retired and
left the State), but I've always wanted to do something interesting
with it.  Perhaps an AVR-controlled, Dallas 1-wire thermometer
display?

-ethan

-- 
Ethan Dicks, A-333-S     Current South Pole Weather at  1-Mar-2008 at 12:10 Z
South Pole Station
PSC 468 Box 400       Temp  -58.7 F (-50.4 C)   Windchill   -87.0 F (-66.1 C)
APO AP 96598          Wind   7.7 kts Grid 133   Barometer 689.0 mb (10291 ft)

Ethan.Dicks at usap.gov            http://penguincentral.com/penguincentral.html