[Hallicrafters] SX-117 and Strange Happenings.

[Bill Gerhold]

George,

Thanks for the idea.  However, I have adjusted the BFO control to exactly
50khz which is what the service manual says.  Prior to this adjustment, I
was receiving SSB either upper or lower in any switch position (excluding
AM).  Since the receiver is working OK at this point, even though I had to
swap the crystals, I think I will leave it alone since there are no other
adjustments that can be made that will correct the problem that I know of or
that I can see on the schematic.  I will continue to wonder about this.

K2WH

-----Original Message-----
From: hallicrafters-bounces at mailman.qth.net
[mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of George KB2Z
Sent: Thursday, May 19, 2005 7:49 PM
To: Bill Gerhold; hallicrafters-mailman.qth.net
Subject: Re: [Hallicrafters] SX-117 and Strange Happenings.

Bill,
I had the same problem with an SX-111. It played great, only backwards. In 
the case of the SX-111 it took about 3/4 of a turn on the BFO transformer 
screw to set it right. I forget if it was in or out. I was about ready to 
give the SX-111 away. I'm glad I didn't.
Good luck, George


At 04:44 PM 5/19/05 -0400, you wrote:

>Just performed a complete alignment of the SX-117 and all went well with
>better performance.  Having the proper equipment to perform the alignment
is
>of great help of course.  Love my URM-25D signal generator.
>
>Anyway, before the alignment, and after this alignment, I noticed I had
>inverted SSB and I still have inverted USB and LSB.  I thought the
alignment
>would solve the problem but it didn't.  In the LSB switch position, I
>actually receive USB and in USB I receive in LSB.  I swapped the (2)
>crystals, 1.600khz and 1.700 kHz, and all is fine.  However, the sockets
the
>crystal go in are labeled the other way.  In other words, to get the
USB/LSB
>correct, I switched the crystal into the opposing sockets.  The 1600khz
>crystal in the 1.700khz socket and so forth.  I checked the crystal
>frequencies and they are exactly on frequency.
>
>Checking the USB/LSB switching, the correct crystal is being selected.  Now
>I have a dilemma where I have physically reversed the crystals into the
>incorrect sockets, but the receiver works fine.  Anyone have any ideas on
>what's going on here?  Is it possible Hallicrafters labeled the socket
>incorrectly or put the socket in backwards.  Could someone have rewired the
>switch to socket connection?
>
>K2WH
>
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