Replacement Finals??

[Mark Graalman WB8JKR]

  Sounds like an alignment problem, or maybe weak injection
to one of the mixers. A tube is not going to amplify fine at 30 Mhz
and not at 7 Mhz, the tube doesn't "know" what frequency is going
through it, is either capable of running at a certain frequency or
it isn't. Could be a cap drifting and detuning something etc.

Mark  WB8JKR


On Wed, 3 Sep 2003 18:35:19 +0000 wb7tne at COMCAST.NET writes:
>  Hello all. Say,what are the best available final replacement tubes
> on the
> market for the HW-100. Althought this radio has seen little use,and
> I've been
> able to go throught the complete alignment process,receiver and
> transmitter
> both,the output is 60-80 watts on 15-10.Seems ok there.Then it's
> down to 40 on
> 20 meters. 80-40 is ten to 20 watts and falls off after about 10
> seconds of
> keying.Heterodyne crystals weak or bad?? This is all into a known
> good dummy
> load. Any suggestions would be appreciated. Thanks to the
> list.Driver tube is
> good.
>
> 73
> Daryle
> WB7TNE
>
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