[Amps] Intermittent Bird element

[Paul Higginson]

In message <001901c54317$6f8dcd00$0301a8c0 at home>, Steve Thompson 
<g8gsq at ic24.net> writes
>Jeff wrote:
>> I recently bought a 2500C Bird Element. It worked fine for
>> abit but then developed a intermittent problem. I can only
>> make it work by tapping on top of the element every time,
>> otherwise it drops to zero. Any way to fix this or send for repair??

I recently had a similar problem with a 1000D element which exhibited 
similar symptoms.

In this particular one there was a small cal pot which the wiper had 
gone O/C. Wiggling the pot about cured the problem here - but of course 
you then need to "calibrate" the unit. - hope that doesn't re start the 
old thread :-)

Access to the pot is obtained in the usual way by gently- carefully- 
lifting the label cap off by gently - carefully- warming the units face 
and gently- carefully- easing it off with a sucker and 10a scalpel 
blade.

HTH
-- 
73 de Paul GW8IZR
(IO73TI Anglesey)