Keyer problem

Dave Simmons dsimmons at MACROMEDIA.COM
Thu Jun 4 12:18:53 EDT 1998


Hi all -

I'm in the middle of setting up my station after an 18 year break, and have
found my Heathkit keyer (HD-1410) is not working.

When I plug it into my Kenwood rig, it activates the rig as if the key is
pressed all the time.  I checked the cable, found the KW puts about 60
volts onto the key line, and the manual says the keyer should handle it.
The keyer seems to operate normally with or without a connection to the
rig, so I suspect something's wrong in the switching transistor circuit.  I
checked that at the input connector with a VTM and found it seemed to
switch correctly when sending.

Before I start poking around, has anyone had a similar problem before and
might recommend a place to start ?

Thanks,

 - Dave
 KQ6RL

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