Tue Jun 19, 2018 10:45 pm
On 06/19/2018 02:24 AM, Terry Pinnell wrote:
Terry Pinnell <me_at_somewhere.invalid> wrote:
Before trying your filter I re-assembled in the slight hope that my
removal/replacement (and touching up a couple of joint that looked
mildly suspicious) might have fixed the spurious triggering. I tried a
few dozen times, switching the cupboard lamp on/off as described
earlier, and so far so good!
Left the temporary sounder in place to try over a few successive nights
and will report back on final outcome.
Thanks for your patient help, which is much appreciated.
***** That last status report was prematurely optimistic. Turned out to
be two faulty microswitches, both intermittent. One was a rusted (and
greatly weakened) magnet, the other a sticking shed window. And both at
the far end of the loop, so many hours before I found them.
Terry, East Grinstead, UK
It's always something.
Dr Philip C D Hobbs
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
hobbs at electrooptical dot net