[HBR] troubleshooting an HBR 16-help appreciated

[hbr@mailman.qth.net]

Darrell wrote:

> Make sure the plates of the air padder across the coil aren't
> shorted. I've seen them where the rotor somehow slips out of place
> and forces itself against the stator plates. 

I've seen that too.   One flavor is the bushing (usually hex shape) on 
the end of the rotor shaft is loose so the contact spring pushes the 
shaft and rotor down and the plates short.  Another is the crimped-in 
bushings in which the stator is mounted (usually soldered) on the 
end plate are not crimped firmly so the stator flops around causing at 
least serious instability and possibly a short.

Ted's approach with putting the oscillator below the band on all 
bands above 80 gives significantly better stability than going to the 
high side.   You do have to flip sidebands when switching from 80 to 
the higher bands.

Walt
KJ4KV