[VHFcontesting] Long shot about Bird product

[David Olean]

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