[Heathkit] HW-101 Low output on 40 meters
Kenneth G. Gordon
kgordon2006 at verizon.net
Wed Jun 28 01:15:04 EDT 2006
> The rig is entirely stock except that my father-in-law was never able
> to get a tin on the two steel shield partitions in the driver
> compartment. I had no better luck than he, so I replaced them with
> sheet brass, soldered to the comb rails on both ends, to the ground
> plane with a piece of tinned braid and soldered to the center pins of
> the tube sockets.
There is a service bulletin from Heathkit concerning this problem. It has
to do with the shields over the coils on the bottom of the rig.
What you have done with your home-made shield is exacerbate the
problem. I think what is happening is that your home-made shield is
adversely effecting the "Q" of the coils.
Go to:
http://www.mines.uidaho.edu/~glowbugs/
and click on the link at the bottom, 15) Modifications to...etc.
All the HW-101 service bulletins are posted there, and if you search
them, you will find a reference to your problem.
I hope this helps.
Ken Gordon W7EKB
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