DX-100

[Huttinger]

At 08:32 AM 5/17/98 -0700, you wrote:
>I have inherited a slightly blown up DX-100 and am working on getting it
>back on the air. The Parasitic suppressors were incinerated and the
>plate choke for the 6146es is open. I was able to rebuild the
>suppressors but I need a plate choke.

   Hi,
    Well I don't have one of those.  I put a DX-100 back on the air once.
It also had the parasitic suppressors blown.  One was reading 100 ohms and
the other was open.  I believe they are supposed to be 47 ohms.  I replaced
them with larger resistors though I am not convinced they would help much in
a thorough melt down.  Also, the capacitor from the grids of the 6146s to
ground was open.  It tuned up funny until I fixed that.  A tang was melted
off on the bandswitch which I replaced by drilling out the old tang and
replacing it with a similar one from a junkbox switch.  There was a
mismatched pair of 6146s in it and the plate of one of them glowed red
during transmission until I got a balanced pair of them in there.  One thing
I never fixed was an instability in the oscillator which made my CW note
drift around.  The poor ham on the other end of the only CW QSO I tried with
the DX 100 must have chased my signal all over the band in order to copy.
The instability wasn't noticeable on AM.  I really enjoyed getting that
DX-100 working.  It was almost as much fun as putting together a Heathkit.
    Mike Huttinger

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