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Old June 23rd 08, 12:33 PM posted to rec.antiques.radio+phono,rec.radio.amateur.boatanchors
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Default Tunable hum in Heathkit SB-401 RF output

On Jun 22, 9:49 pm, "Kim Herron" wrote:
One thing that wasn't mentioned was the possibility that one of
the cables that interconnect the two pieces of gear, if he has them
cabled up to work as a transceiver COULD have an open shield and that
could account for some introduced hum that gets louder with the audio,
since this is a heterodyne type transmitter, and not a phasing rig.


Good idea. I’ll check this tonight. Thanks, Kim.

On Jun 22, 9:14 pm, "COLIN LAMB" wrote:
And, it seems kind of early to check the equipment out for Field Day, isn't
it? That is something you are supposed to start Friday night and then have
to stay up all night to fix it, so you can start Field Day bleary eyed.
Seems almost unfair to check this stuff out now.


I know, I know. Please forgive me.

-Dave Drumheller, K3WQ
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