[Hallicrafters] SX-42 alignment - help needed.

[Al Parker]

Hi Skip,
    Are you sure the dial is set correctly on the shaft?  Check it with the
tuning cap fully meshed and unmeshed.  The other thing, if you've changed
C-47 almost 20% & seen little or no change, you may have changed the wrong
one.  I know it's possible on the higher bands to get the osc. freq. on the
wrong side of the signal freq. in the SX-42, but suspect it can't be done on
the lowest band.  (I've done it on the 5-15mc band).
    After messin' with mine for over a yr, I've finally finished it.  Last
item was that the 2 micas in one of the 455kc IF xfmrs were bad.  Big
improvement with good ones.  (sounds like you haven't got that problem)
    Hope this is some help.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info

----- Original Message -----
From: "Waldo Magnuson" <magnuson at mac.com>
To: <hallicrafters at mailman.qth.net>
Cc: "Waldo Magnuson" <magnuson at mac.com>
Sent: Thursday, July 24, 2003 5:18 PM
Subject: [Hallicrafters] SX-42 alignment - help needed.


> Help - Help - Help
> I'm trying to align my SX-42 (after recapping it) at 1500 kc / 600 kc
> on band 1 but am unable to get any peaking near 1500 kc when adjusting
> C-47, 6, 21 & 35.  With the dial at 1500 kc, the output (400 Hz) comes
> in at around 1330 kc by changing the input.
> At 600 kc I can get a peak by adjusting S-36.  I've tried reducing C-47
> from 470 pf to 390 pf but with little effect.  The IF peaks up ok.
> Any suggestions on what to try?  All and any help would be appreciated.
>   Thanks.
> Skip Magnuson   KD7VRM
>
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