[Amps] Bird 43P Stopped Working

[Jeff DePolo]

> I think the slug contact in the line section may be at fault, or maybe the
> coaxial pigtail.

The slug contacts are silver-plated, but can still result in intermittent
contact if not "wiped" by a rotating slug now and then.  If it's been
sitting a long time, they may just need some TLC with a gentle cleaning
using IPA or contact cleaner.

The "DC" (directional coupler) connector for Bird line sections is notorious
for developing a poor connection, either at the contact interface between
the connector and the line section, or where the center conductor of the
coax is inserted through the spring-like center pin contact.  If cleaning
the interface doesn't fix it, you may have to take apart the connector (it
will likely be obvious how to do so), cut off and re-prep the end of the
coax, and insert and re-assemble.

If none of those fix it, there's a possibility that the meter movement is
bad, but from my experience, that's the least-likely suspect given the
symptoms you've described.

					--- Jeff WN3A



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