OT-timer circuit

[Rinkie & Ron Pollack]

Off topic, but in the aggregate, this group knows everything!

Anyone have or know where to get a circuit for a simple countdown timer
using a digital display of some sort?  Thought this would be easy to find,
but it's not!

Thanks
Ron K2RP

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://interactive.tempe.gov/archives/HEATH.html