Did you try replacing the batteries? Initially cold and low voltage, flow a
bit of current and they get a wee bit warmer and a wee bit higher voltage.
Just a thought.
And why smoke alarms always give low voltage warnings in the early
morinings.



"Roger Long" wrote in message
...
(or anyone else familiar with IC circuits)

The LED flasher in my homemade MOB pole was scavenged from a bike light.
See first two pictures he

http://home.maine.rr.com/rlma/MOB.htm

I test it from time to time and it has started coming on as a steady
light. Sometime it will start flashing after about a minute. Usually if I
turn it off and back on again with the magnetic reed switch, it will start
flashing. Once flashing, it works properly until the next time.

Since these are LED's and the circuit board appeared to be all IC's, I
don't think this is the delay you sometimes see when mechanical flashers
take a few seconds to warm up.

The pole is probably just about as good with a steady light but I wouldn't
want a recovery confused by the light switching from steady to flashing.
Of more concern is the possibility that the circuit board is failing and
the light might not go on at all.

Any idea what could make a circuit like this act weird in this
inconsistent way? The reed switch is well separated from the circuit
board so that isn't a factor.

No chance of replacing these components. They were all embalmed in epoxy
to be sure water could never get in. I'll have to build a new pole
section next winter.

--
Roger Long