[Hallicrafters] SX-42 S-meter blues

[Steve & Sharon Nordentoft]

Actually Duane, no.   
I followed the procedures as described in a Hallicrafters service bulletin number 94X317, #2.
It reads as follows:
SENS: Max
RECEPTION: AM
SELECT: Norm/sharp
AVC SW: AVC
BAND SEL: 15/30
VOL: Max
I have performed a similar calibration earlier in the restoration process and worked fine.  The leads to the meter have not changed positions since the meter had operated properly.
Could it be a tube (like the 7A4)? or, a resistor?

Steve


----- Original Message -----
From: Duane Fischer, W8DBF
Sent: Tuesday, August 30, 2005 9:42 PM
To: Steve & Sharon Nordentoft
Subject: Re: [Hallicrafters] SX-42 S-meter blues

Did you calibrate with AVC off?

----------
From: Steve & Sharon Nordentoft <sskn at msn.com>
To: hallicrafters <hallicrafters at mailman.qth.net>
Subject: [Hallicrafters] SX-42 S-meter blues
Date: Tuesday, August 30, 2005 11:38 PM

Hi All,

Sadly, after a full cosmetic and partial electrical restoration of my SX-42,
it's s-meter now reads erroneously.  I replaced the zero-set pot and doubled
checked the circuitry.  After proper calibration using the pot, the meter will
not zero down and only will fall to about 7 on it's scale.  One stronger
signals, the meter will only peg at just above 40 on it's scale and the needle
tends to be a bit bouncy.  I'm somewhat baffled since the meter was operating
properly even after my re-cap job.  The AVC operation does appear to me to
operate properly.  The meter seems to work properly when using the FM function.  
I replaced the zero-set pot with a new 500 ohm, 3 watt part.    

Any suggestions from the group as to what to look for would be appreciated!  
Thanks!

73
Steve
KA0BMQ
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