"Jasen Betts" bravely wrote to "Greg Mayman" (02 Sep 04
 15:34:16)
 --- on the heady topic of ""


 JB> here's a simple one.

 JB> .--- themostat --- electric nosise-maker -----.
 JB> |                                             |
 JB> `---------- battery --------------------------'

 JB> actually I can't improve on that....

It is beautiful in its simplicity and since the thermostat can be had
from a dead freezer it can be very cheap.

I had an idea for using a 7555 timer (cmos version of 555). Basically
record how often the freezer turns on and then set the 7555 to detect
when the freezer misses a cycle. But yours is by far the best I've
seen. Great thinking!

 Asimov

... Without ignorance, knowledge is powerless.
--- Blue Wave/DOS v2.30