[Hallicrafters] Re: Hallicrafters SX-42 alignment from Al Parker.
Waldo Magnuson
magnuson at mac.com
Fri Jul 25 20:24:32 EDT 2003
Hi Al,
The dial is set correctly on the shaft. Changing C-47 doesn't make
a lot of difference (I've even gone to half of it's 470 pf value). I
can peak at 600 kc by adjusting S-36 but when I go to 1500 kc dial
setting even with C-47 at min. setting peaks with an input freq. of
1305 kc. To even get it close to 1500 kc I have to back the S-36 slug
almost all the way out. Something is way off. If there are any SX-42
experts on alignment I would sure like any of you to look at the
schematic and suggest things I could try. I have heard of slugs
breaking - is this a possibility? Help appreciated.
Skip Magnuson
On Friday, July 25, 2003, at 01:03 AM,
hallicrafters-request at mailman.qth.net wrote:
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> Today's Topics:
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> 1. Re: Hallicrafters S-38 knob --attn.Ron Hensel (Lorne Bohn)
> 2. SX-42 alignment - help needed. (Waldo Magnuson)
> 3. Re: SX-42 alignment - help needed. (Al Parker)
>
> --__--__--
>
> Message: 1
> Date: Thu, 24 Jul 2003 07:01:32 -0700
> From: Lorne Bohn <lbohn at shaw.ca>
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] Re: Hallicrafters S-38 knob --attn.Ron Hensel
>
> Hi Ron,
>
> I tried to e-mail you directly but I find that sometimes it's not
> possible
> to reply directly to members and you have to reply directly on the
> list.
>
> Thank you for your kind offer for the knob! Let me know what you get
> charged for the postage. I'm more than willing to reimburse you! I've
> listed my address below.
>
> Lorne Bohn,
> 5348 Lost Lake Rd.,
> Nanaimo, B.C.,
> Canada,
> V9T5E8
>
> E-mail: lbohn at shaw.ca
> Voice: (250) 758-5683
> Fax: (250) 758-5055
>
> ----- Original Message -----
> From: "Lorne Bohn" <lbohn at shaw.ca>
> To: <hallicrafters at mailman.qth.net>
> Sent: Tuesday, July 22, 2003 7:45 PM
> Subject: [Hallicrafters] Hallicrafters S-38
>
>
>> I have just become the proud owner of a Hallicrafters S-38. My second
> Hallicrafters. I'm hooked :-) It's complete except that the "C W
> Pitch"
> knob is missing. They look the same as those on my SX-99. I saw some
> posts
> awhile back where someone has knobs for Halli radios for sale. Any
> help in
> locating one would be appreciated.
>>
>> I haven't had a chance to look inside yet but he cord is crystalized
>> and
> missing but other than that, it has the back, only minor scratches, no
> rust
> and could be a LOT more dirty.
>>
>> Thanks for any help or advice. Best regards,
>>
>> Lorne Bohn,
>> Canada,
>> E-mail: lbohn at shaw.ca
>>
>>
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>> _______________________________________________
>> List Administrator: Duane Fischer, W8DBF **for assistance**
>> dfischer at usol.com
>> ----
>> Hallicrafters Collectors International: http://www.w9wze.org
>> ----
>> http://mailman.qth.net/mailman/listinfo/hallicrafters
>
>
> --__--__--
>
> Message: 2
> Date: Thu, 24 Jul 2003 14:18:29 -0700
> Cc: Waldo Magnuson <magnuson at mac.com>
> To: hallicrafters at mailman.qth.net
> From: Waldo Magnuson <magnuson at mac.com>
> 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
>
>
> --__--__--
>
> Message: 3
> From: "Al Parker" <anchor at ec.rr.com>
> To: "Waldo Magnuson" <magnuson at mac.com>,
> <hallicrafters at mailman.qth.net>
> Subject: Re: [Hallicrafters] SX-42 alignment - help needed.
> Date: Thu, 24 Jul 2003 19:24:22 -0400
>
> 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
>>
>> _______________________________________________
>> List Administrator: Duane Fischer, W8DBF **for assistance**
>> dfischer at usol.com
>> ----
>> Hallicrafters Collectors International: http://www.w9wze.org
>> ----
>> http://mailman.qth.net/mailman/listinfo/hallicrafters
>>
>
>
>
>
>
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