I know this is a long shot, but my Bird 6154 wattmeter seems to have
developed a serious problem and I need advice on fixing it. The thing
has two ranges with a crystal diode that plugs into two connectors. 05
and 0-15 watts works fine. The 50 and 150 watt position does not. It is
way out of calibration. It used to work FB. (?) I am looking for some
grizzled and crotchety old Bird employee who has the tribal knowledge to
effect the repair. To calibrate these things you poke a small allen
wrench into two openings on either side of the input housing. There is a
hole for each range. The low power side works great and works fine. The
allen wrench will turn something inside and adjust the power setting. ,
but when I stick the allen wrench in the other side, I can feel no set
screw adjuster so I think some Bozo may have turned the setting in too
far and messed things up. I have to disassemble it, but it looks all
soldered together. The guts are held in with a threaded locking nut. I
can loosen that, but there is no way to pull the innards out without
unsoldering things. It looks real dicey.
I need to find someone who knows how they are built and can steer me
properly. If I can't find anyone, I am on my own and will hope for the
best, but we all know how that all works out.
HELP!
73
Dave K1WHS
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