[Hallicrafters] HT-32B 7360 Modulator Balance

Mark Shaum k9tr at dtnspeed.net
Tue Dec 14 08:14:23 EST 2004


----- Original Message -----
From: "David C. Hallam" <dhallam at rapidsys.com>


> Does anyone have a good procedure for the probl
> "Use an old speaker or other permanent magnet to alter the magnet
pattern of
> the cover.  To use the magnet, move it a circle above the SB generator
with
> the cover closed while observing balance.  When a null is obtained,
lift the
> magnet straight up and away.  The null will hold."
>

Interesting.  I'll try that on my HT-32B this weekend.  I don't recall
having any issues with carrier suppression but it may be fun to play
with.

I have some other transceivers with 7360's and note that at least one of
them has a mu-metal shield over the balanced modulator tube.  These were
frequently used to shield CRT's from stray magnetic fields but there are
likely some still available for 9 pin min tubes as well.

73! - Mark K9TR




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