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Re: Hallicrafters on TV
开云体育That screw on the right panel edge looks half way into the cabinet too … strange ..POOR OLD HALLI Don VA3DRL ?
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Re: Hallicrafters on TV
开云体育Agree the cabinet looks HP-like, and especially with that defining trim ring. So similar in appearance to my old HP-606A - a great shop heater in the winter.Dan WB4GRA On Nov 11, 2022, at 8:17 PM, Richard Knoppow <1oldlens1@...> wrote:
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Re: Hallicrafters on TV
开云体育The knobs don't look right either.? The cabinet looks almost like a Hewlett packard case. Maybe something cobbled together by the prop department. -------- Original message -------- From: n7qmm25 <n7qmm25@...> Date: 11/11/22 4:25 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] Hallicrafters on TV The face is similar but the cabinet is wrong. The cabinet on mine
has the screen top that is hinged at the rear. The SX62 still had
the screen top on the cabinet. On 11/11/2022 3:26 PM, Robert Eckweiler
wrote:
Happened to be watching an old episode of 77 Sunset Strip (I believe the episode was Season 5 Episode 27 titled "Target Island") and in it was what I believe is an SX-42 receiver. It was up close. Attached is a screen shot I was fast enough to snap with my phone. |
Re: Hallicrafters on TV
开云体育Interesting!? It looks like a hybrid TV studio prop – bits and pieces of Hallicrafters, combined with something else.? If I recall correctly, this was done deliberately in TV shows and movies so that the studios couldn’t be accused of being a marketing arm of one company or another.? Surprised they left the Hallicrafters logo on the dial! ? 73 – Steve, KW4H ? From: <[email protected]> on behalf of Robert Eckweiler <af6c@...> ? Happened to be watching an old episode of 77 Sunset Strip (I believe the episode was Season 5 Episode 27 titled "Target Island") and in it was what I believe is an SX-42 receiver. It was up close. Attached is a screen shot I was fast enough to snap with my phone. |
Re: Hallicrafters on TV
开云体育The face is similar but the cabinet is wrong. The cabinet on mine
has the screen top that is hinged at the rear. The SX62 still had
the screen top on the cabinet. On 11/11/2022 3:26 PM, Robert Eckweiler
wrote:
Happened to be watching an old episode of 77 Sunset Strip (I believe the episode was Season 5 Episode 27 titled "Target Island") and in it was what I believe is an SX-42 receiver. It was up close. Attached is a screen shot I was fast enough to snap with my phone. |
Re: Hallicrafters on TV
Good eye, and quick fingers! Marc-k7wxk? On Fri, Nov 11, 2022, 3:26 PM Robert Eckweiler <af6c@...> wrote: Happened to be watching an old episode of 77 Sunset Strip (I believe the episode was Season 5 Episode 27 titled "Target Island") and in it was what I believe is an SX-42 receiver. It was up close. Attached is a screen shot I was fast enough to snap with my phone. |
Re: Hallicrafters on TV
Wrong knobs, but great radio (and you have quick reactions!) :-) John K5MO On Fri, Nov 11, 2022 at 6:44 PM Ken Stinson <Kenst@...> wrote: It looked Good then and it still looks Good Now! |
Hallicrafters on TV
Happened to be watching an old episode of 77 Sunset Strip (I believe the episode was Season 5 Episode 27 titled "Target Island") and in it was what I believe is an SX-42 receiver. It was up close. Attached is a screen shot I was fast enough to snap with my phone.
Later on they showed a Heathkit GW-10 CB radio in the same episode. Bob, AF6C |
Re: SX-110 Alignment Puzzle
开云体育Well done and thanks Steve: you must have a wide or long ?scanner to get that schematic in one scan! 73,, Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of KW4H via groups.io
Sent: Thursday, November 10, 2022 10:04 PM To: [email protected] Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? Attached is the entire SX-110 manual in PDF format.? This is a scan I did myself – it’s much clearer than the one over on BAMA. ? 73 – Steve, KW4H
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Re: SX-110 Alignment Puzzle
开云体育Very nice.? ?As I thought the crystal filter is a throw back.tp the original Lamb filter.? The idea of single signal was to eliminate the audio image on cw.? The original filter worked at one setting of The phasing control .? When the bandwidth was changed the phasing control had to be readjusted.? -------- Original message -------- From: "KW4H via groups.io" <reedsteve@...> Date: 11/10/22 7:06 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle Attached is the entire SX-110 manual in PDF format.? This is a scan I did myself – it’s much clearer than the one over on BAMA. ? 73 – Steve, KW4H ? From: <[email protected]> on behalf of Richard Knoppow <1oldlens1@...> ? I wanted to look at the handbook at bama. May have it on my other computer .? I will look for your attachment.? Pretty dire this thing will do png ? ? ? ? ? -------- Original message -------- From: don Root <drootofallevil@...> Date: 11/10/22 2:12 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? Richard, Steve etc too; ??the attachment that Steve sent is a .png .. pretty common now ; don’t see any djvu and it opens well here and is readable. The attachment is the specific alignment procedure for the sx-110 I presume. IF you read it, you can address the question more specifically I save it as a .jpg and attached try that. 73,,? Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow ? I can't open deja vu on my cell phone. Most receivers with single crystal filters adjust the IF to the crystal frequency.? ?A very few,? like the Collins 51J series need to have an exact IF frequency due to the way the tuning is done but this is very rare.?? Despite the discussion about signal generator calibration and stability it should be possible to align a simple IF with a service grade generator.? The crystal establishes the frequency. Since the overall bandwidth of the IF is considerably wider than the crystal great precision is not necessary.?? In most cases the crystal stage will have input tuning, a loading adjustment to set broadest crystal bandwidth, and maybe a neutralizing adjustment to center the phasing notch.?? Some earlier receivers have essentially a fixed crystal bandwidth and fixed phasing adjustment.? These use the original Lamb circuit.? The adjustment procedure is rather different from the later Hammarlund type filter.? Can be confusing but I don't think the earlier filter was used after aboutb1950. ? ? ? ? |
Re: SX-110 Alignment Puzzle
开云体育Attached is the entire SX-110 manual in PDF format.? This is a scan I did myself – it’s much clearer than the one over on BAMA. ? 73 – Steve, KW4H ? From: <[email protected]> on behalf of Richard Knoppow <1oldlens1@...> ? I wanted to look at the handbook at bama. May have it on my other computer .? I will look for your attachment.? Pretty dire this thing will do png ? ? ? ? ? -------- Original message --------
From: don Root <drootofallevil@...> Date: 11/10/22 2:12 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? Richard, Steve etc too; ??the attachment that Steve sent is a .png .. pretty common now ; don’t see any djvu and it opens well here and is readable. The attachment is the specific alignment procedure for the sx-110 I presume. IF you read it, you can address the question more specifically I save it as a .jpg and attached try that. 73,,? Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow ? I can't open deja vu on my cell phone. Most receivers with single crystal filters adjust the IF to the crystal frequency.? ?A very few,? like the Collins 51J series need to have an exact IF frequency due to the way the tuning is done but this is very rare.?? Despite the discussion about signal generator calibration and stability it should be possible to align a simple IF with a service grade generator.? The crystal establishes the frequency. Since the overall bandwidth of the IF is considerably wider than the crystal great precision is not necessary.?? In most cases the crystal stage will have input tuning, a loading adjustment to set broadest crystal bandwidth, and maybe a neutralizing adjustment to center the phasing notch.?? Some earlier receivers have essentially a fixed crystal bandwidth and fixed phasing adjustment.? These use the original Lamb circuit.? The adjustment procedure is rather different from the later Hammarlund type filter.? Can be confusing but I don't think the earlier filter was used after aboutb1950. ? ? ? ? |
Re: SX-110 Alignment Puzzle
开云体育I wanted to look at the handbook at bama. May have it on my other computer .? I will look for your attachment.? Pretty dire this thing will do png -------- Original message -------- From: don Root <drootofallevil@...> Date: 11/10/22 2:12 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle Richard, Steve etc too; ??the attachment that Steve sent is a .png .. pretty common now ; don’t see any djvu and it opens well here and is readable. The attachment is the specific alignment procedure for the sx-110 I presume. IF you read it, you can address the question more specifically I save it as a .jpg and attached try that. 73,,? Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow ? I can't open deja vu on my cell phone. Most receivers with single crystal filters adjust the IF to the crystal frequency.? ?A very few,? like the Collins 51J series need to have an exact IF frequency due to the way the tuning is done but this is very rare.?? Despite the discussion about signal generator calibration and stability it should be possible to align a simple IF with a service grade generator.? The crystal establishes the frequency. Since the overall bandwidth of the IF is considerably wider than the crystal great precision is not necessary.?? In most cases the crystal stage will have input tuning, a loading adjustment to set broadest crystal bandwidth, and maybe a neutralizing adjustment to center the phasing notch.?? Some earlier receivers have essentially a fixed crystal bandwidth and fixed phasing adjustment.? These use the original Lamb circuit.? The adjustment procedure is rather different from the later Hammarlund type filter.? Can be confusing but I don't think the earlier filter was used after aboutb1950. ? ? ? ?
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FS SX-101 Parts
开云体育RF deck and
oscillator / mixer module
?
Removed from sad but
working SX-101
?
$25 plus
shipping
?
No paypal, zelle,
etc......
?
Cash,
check
?
Tom
W3TA |
FS SX-101 Power Transformer
开云体育Removed from sad but
working SX-101.
?
$25 plus
shipping
?
No paypal, zelle,
etc....
?
Cash or
check
?
Tom
W3TA |
FS HT-32 Parts - Lot
开云体育No longer have an
HT-32 to support so my spare parts need a new home. What you see is what you
get, no guarentee on function.
?
Sold as a lot
only.
?
$40 plus
shipping
?
?
I also have a nice
HT-32 front panel. $20 plus shipping
?
?
No paypal or Zelle.
Cash or check
?
Tom
W3TA
?
? |
Re: SX-110 Alignment Puzzle
开云体育Steve:? what you wrote sounds consistent and more accurate than words in the manual. My guess is that the notch you first got is the “parallel resonant frequency” of the crystal which should be a bit higher than the “series resonant frequency” which you get at step 3. ?I am an onlooker, but surprised that it is a whole KC lower. Keep on the good work Steve. 73,,? Don VA3DRL ? ? From: [email protected] [mailto:[email protected]] On Behalf Of KW4H via groups.io
Sent: Thursday, November 10, 2022 6:29 PM To: [email protected] Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? Thanks all for the replies.? Well, this afternoon I went through the IF alignment procedure again.? The null was reconfirmed as at 456.380.? Moving on to step 3, I switched the selectivity to sharp, but this time adjusted the signal generator frequency for the maximum output, rather than left the generator at 456.380.? The peak was at 455.380.? I then re-peaked all the other adjustments at that frequency (leaving the first one alone).? The SX-110 appears to be working fine, and the crystal filter seems to be operating as it should (or close enough).? The main source of confusion in Hallicrafters’ alignment instructions is the “NOTE” just below step 2 – adjustment “A” is not really adjusted to “the frequency of the crystal”.? It’s aligned to the frequency of the notch that may be located above or below the actual crystal frequency.? From step 3 onward, the adjustments are for the actual, exact crystal frequency.? At least, that’s how I read it at this point. ? 73 – Steve, KW4H ======trnd
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Re: SX-110 Alignment Puzzle
开云体育Thanks all for the replies.? Well, this afternoon I went through the IF alignment procedure again.? The null was reconfirmed as at 456.380.? Moving on to step 3, I switched the selectivity to sharp, but this time adjusted the signal generator frequency for the maximum output, rather than left the generator at 456.380.? The peak was at 455.380.? I then re-peaked all the other adjustments at that frequency (leaving the first one alone).? The SX-110 appears to be working fine, and the crystal filter seems to be operating as it should (or close enough).? The main source of confusion in Hallicrafters’ alignment instructions is the “NOTE” just below step 2 – adjustment “A” is not really adjusted to “the frequency of the crystal”.? It’s aligned to the frequency of the notch that may be located above or below the actual crystal frequency.? From step 3 onward, the adjustments are for the actual, exact crystal frequency.? At least, that’s how I read it at this point. ? 73 – Steve, KW4H ? From: <[email protected]> on behalf of don Root <drootofallevil@...> ? Richard, Steve etc too; ??the attachment that Steve sent is a .png .. pretty common now ; don’t see any djvu and it opens well here and is readable. The attachment is the specific alignment procedure for the sx-110 I presume. IF you read it, you can address the question more specifically I save it as a .jpg and attached try that. 73,,? Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow
Sent: Thursday, November 10, 2022 3:51 PM To: [email protected] Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? I can't open deja vu on my cell phone. Most receivers with single crystal filters adjust the IF to the crystal frequency.? ?A very few,? like the Collins 51J series need to have an exact IF frequency due to the way the tuning is done but this is very rare.?? Despite the discussion about signal generator calibration and stability it should be possible to align a simple IF with a service grade generator.? The crystal establishes the frequency. Since the overall bandwidth of the IF is considerably wider than the crystal great precision is not necessary.?? In most cases the crystal stage will have input tuning, a loading adjustment to set broadest crystal bandwidth, and maybe a neutralizing adjustment to center the phasing notch.?? Some earlier receivers have essentially a fixed crystal bandwidth and fixed phasing adjustment.? These use the original Lamb circuit.? The adjustment procedure is rather different from the later Hammarlund type filter.? Can be confusing but I don't think the earlier filter was used after aboutb1950. ? ? ? ? ? |
Re: SX-110 Alignment Puzzle
开云体育Richard, Steve etc too; ??the attachment that Steve sent is a .png .. pretty common now ; don’t see any djvu and it opens well here and is readable. The attachment is the specific alignment procedure for the sx-110 I presume. IF you read it, you can address the question more specifically I save it as a .jpg and attached try that. 73,,? Don VA3DRL ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow
Sent: Thursday, November 10, 2022 3:51 PM To: [email protected] Subject: Re: [HallicraftersRadios] SX-110 Alignment Puzzle ? I can't open deja vu on my cell phone. Most receivers with single crystal filters adjust the IF to the crystal frequency.? ?A very few,? like the Collins 51J series need to have an exact IF frequency due to the way the tuning is done but this is very rare.?? Despite the discussion about signal generator calibration and stability it should be possible to align a simple IF with a service grade generator.? The crystal establishes the frequency. Since the overall bandwidth of the IF is considerably wider than the crystal great precision is not necessary.?? In most cases the crystal stage will have input tuning, a loading adjustment to set broadest crystal bandwidth, and maybe a neutralizing adjustment to center the phasing notch.?? Some earlier receivers have essentially a fixed crystal bandwidth and fixed phasing adjustment.? These use the original Lamb circuit.? The adjustment procedure is rather different from the later Hammarlund type filter.? Can be confusing but I don't think the earlier filter was used after aboutb1950. ? ? ? ?
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