Lawdog14 with the sticky relay switching over to or from battery
backup. This is going to sound crazy but you should try it before you
laugh. I solved many a relay problem by sticking a thin piece of
paper between the soft iron core of the coil and the clapper of the relay.
Sometimes the soft iron core becomes slightly magnetized and won't pull in
or release the clapper properly. A thin piece of paper covering the iron core of
the coil will change the magnetic flux and allow the relay to operate as it
should. I repaired about 500 Apple Laserwriter II laser printers with
this method, by inserting an Avery sticky label attached to the soft iron coil
core, The printers were intermittently indexing on
the wrong line when printing. Bad news when printing on forms.
Second thing to try is to make sure a fine piece of metal such as a file
shaving is not magnetized on the soft iron core When the coil is energized
the metal flake changes position and prevents proper control of the moveable
clapper plate. Please no boos from the BMOC.
Gary K2UQ
Yahoo! Groups Links
|
- Re: [Repeater-Builder] base station power supply/relay proble... albemarle7