开云体育

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. HallicraftersRadios
  2. Messages
Expanded Topics Messages
Date
Re: The First and Last Hallicrafters with Flywheel tuning?

 
Edited

I have both an SX-10 and an SX-11 and the SX-10 does not have flywheel tuning (at least mine doesn't). ?I restored the SX-10 (pictured on top) some years back. ?The SX-11 just below it in the picture does have flywheel tuning so I am thinking it is the very first. ?It is circa 1937...
?
Re: The First and Last Hallicrafters with Flywheel tuning?

 

开云体育

Oh excellent Jim.? There the freewheel 'be' on the Radiomuseum underchassis view.? Great going!? The new winner at 1936 the SX-10.?

Now we have the first, the 1936 SX-10 and the last, the 1969 SX-146.? Any dissenters out there?

73
Don N9OO





On 4/27/25 11:59 PM, Jim Whartenby via groups.io wrote:

The SX-10 is most likely the first hallicrafters with flywheel drive.? Radiomuseum has several photos of the insides showing the mechanism.? The SX-10 dial is the first to have an engraved dial of some 300+ degrees.? Looking at the SX-9 photos at the RM, it appears to have a direct drive so the 180 degree dial makes perfect sense.? I assume that the sets made before hallicrafters began production with the S-9 are also 180 degree dials?

The SX-10 set the standard for later production models.? The rumor is that only 200 were made but I think that there must have been more made then that.? Is this early trendsetter in anyone else's collection?
Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
Re: The First and Last Hallicrafters with Flywheel tuning?

 

The SX-10 is most likely the first hallicrafters with flywheel drive.? Radiomuseum has several photos of the insides showing the mechanism.? The SX-10 dial is the first to have an engraved dial of some 300+ degrees.? Looking at the SX-9 photos at the RM, it appears to have a direct drive so the 180 degree dial makes perfect sense.? I assume that the sets made before hallicrafters began production with the S-9 are also 180 degree dials?

The SX-10 set the standard for later production models.? The rumor is that only 200 were made but I think that there must have been more made then that.? Is this early trendsetter in anyone else's collection?
Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy


On Sunday, April 27, 2025 at 02:46:48 PM CDT, Bill (Group Owner) via groups.io <k2wh@...> wrote:


My SX-17 has direct tuning via a fly wheel.
?

K2WH
Hallicrafter HT-37 and S-76 Need new homes and TLC

 

开云体育

I just posted the following 2 ads on QTH and thought that ops on this server could be the Better solution:

?

?

SEE ATTACHED PIX:

?

A S-76 RECEIVER on top at 46lbs with the right most large microvolt/S-meter glass removed

and the mechanicals of the meter/indicator shot. Cosmetically pretty beat; bottom front case rust, but no internal penetration.

Was capable of 538khz thru 34 mhz in its day. will need work!
No abuse, dampness, smoking, pets. JUST old
$50.00 BO and S/H FEDEX ground or PICKUP via NU2W at QRZ or ARRL
SEE ALL OTHER NU2W ADS----NO PAYPAL!


The bottom rig is the HT-37 XMITER at 80 lbs and was capable of 100 watts cw/ssb and 25 am on 10,14,20,40,80...

Ok/nice cosmetics.... clean and very repairable. All dial tuning/bedspread controls work smoothly as well as other pots, swts, toggles
No abuse, dampness, smoking, pets. JUST old
$135.00 BO and S/H FEDEX ground or PICKUP via NU2W at QRZ or ARRL
SEE ALL OTHER NU2W ADS----NO PAYPAL!

?

ALL offers considered and replied to.?? TU and 73

?

?

STAY SAFE AND STAY WELL!

?

Respectfully,

Thomas K. Lanieri, NU2W

NJ DOH Licensed EMT;?

PHTLS, AMLS, PHPEC

Millenium EMS

ARC N.E. BioMedical Services

ARC N.E. Disaster Cycle Services

?

IMG_1264.JPG

Re: The First and Last Hallicrafters with Flywheel tuning?

 
Edited

开云体育

Thanks Bill.? Well that gets us to the current oldest honor of 1937.

73 - Don N9OO

On 4/27/25 2:46 PM, Bill (Group Owner) via groups.io wrote:

My SX-17 has direct tuning via a fly wheel.
?

K2WH
Re: The First and Last Hallicrafters with Flywheel tuning?

 
Edited

开云体育

There ete all sorts of variations of dial drives. For instance rhe Hammarlund SP 600 JX uses a gear reduction driven by a friction drive on the dial, it also has a flywheel. While it has both a main dial and band spread dial they are driven together. It is an extremely smooth drive.? In comparison, thr RCA AR 88 also has two dials which are driven together via gears but the main shaft is gear coupled to the dial mechanism, no friction drive. It also has a flywheel.? This is also a very smooth drive although the SP 600 is smoother.?





-------- Original message --------
From: "Bill (Group Owner) via groups.io" <k2wh@...>
Date: 4/27/25 12:46 PM (GMT-08:00)
Subject: Re: [HallicraftersRadios] The First and Last Hallicrafters with Flywheel tuning?

My SX-17 has direct tuning via a fly wheel.
?

K2WH
Re: The First and Last Hallicrafters with Flywheel tuning?

 

开云体育

Kevin w9cf contact me at? cateswa at msn.com.


Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.

From:[email protected] <[email protected]> on behalf of Kevin W9CF via groups.io <w9cfw9cf@...>
Sent:?Sunday, April 27, 2025 4:52 PM
To:[email protected] <[email protected]>
Subject:?Re: [HallicraftersRadios] The First and Last Hallicrafters with Flywheel tuning?
?
My SX-146 has been on a shelf in a box in the garage for the last 10 years or more. My memory is that it has a bit of sustained movement, but doesn't go end to end, or anything like that. It does give it a decent feel. I should probably get that HT-46, SX-146, vox unit, etc. out of storage and find them a better home. That SX-146 has all three filters and calibrator, but the previous original owner pried off the Hallicrafters tuning knob and substituted a bigger national knob, so it looks a bit odd...
?
73 Kevin w9cf
Re: The First and Last Hallicrafters with Flywheel tuning?

 

My SX-146 has been on a shelf in a box in the garage for the last 10 years or more. My memory is that it has a bit of sustained movement, but doesn't go end to end, or anything like that. It does give it a decent feel. I should probably get that HT-46, SX-146, vox unit, etc. out of storage and find them a better home. That SX-146 has all three filters and calibrator, but the previous original owner pried off the Hallicrafters tuning knob and substituted a bigger national knob, so it looks a bit odd...
?
73 Kevin w9cf
Re: Mores code

 

Yes, my wife and I celebrated it every year. Birthday of Samuel Morse and also her birthday.
Morse Code Day is celebrated annually on April 27th, the birthday of Samuel Morse, the inventor of the Morse code. It commemorates the pioneering communication method and the invention of the electric telegraph, which first used Morse code.
???????
Even Morris the cat celebrated it.
?
Where have you guys been!
?
Pete, wa2cwa
Re: The First and Last Hallicrafters with Flywheel tuning?

 
Edited

My SX-17 has direct tuning and a fly wheel.
?

K2WH
Re: Mores code

 

开云体育

Mr Morse will be turning in his grave !

So what is “Morse code” ?:? ??“Morse code 1.0” ,? “Morse code 1.1” ,? “Morse code 1.2”??

The earliest? code that resembles ??“Morse code”?? was Vail’s code of 1844…

From

see my attached copy of rt side for better detail

?

From: [email protected] [mailto:[email protected]] On Behalf Of Joe Connor via groups.io
Sent: Sunday, April 27, 2025 1:15 PM
To: HALLI IO GROUP; BOATANCHOR QTH
Subject: Re: [HallicraftersRadios] Mores code

?

But did Samuel Morse really invent this code? Inquiring minds wonder.

?

? ? ? ? Joe Connor

?

On Sunday, April 27, 2025 at 01:11:13 PM EDT, waltcates via groups.io <cateswa@...> wrote:

?

?

Did you know this is officially, Mores Code day?

?

?

Walt Cates, WD0GOF

?

A majority of acceptance is not proof of correctness.

?


--
don??? va3drl

vail stuff smithsonian right side.png

Re: Mores code

 

开云体育

-.? ---? ..? -..? ..? -..? -.? -? -.-? -.? ---? .--? -? ....? .-? -

-? ....? .- ? -.? -.-? ...?? -...? ..? .-..? .-..

(Even after 55 years of non-use !)

Tom Latimer, ex-CTR(2) USNR


On 4/27/2025 13:15, Joe Connor via groups.io wrote:

But did Samuel Morse really invent this code? Inquiring minds wonder.

? ? ? ? Joe Connor

On Sunday, April 27, 2025 at 01:11:13 PM EDT, waltcates via groups.io <cateswa@...> wrote:


Did you know this is officially, Mores Code day?


Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.



Re: Mores code

 

But did Samuel Morse really invent this code? Inquiring minds wonder.

? ? ? ? Joe Connor

On Sunday, April 27, 2025 at 01:11:13 PM EDT, waltcates via groups.io <cateswa@...> wrote:


Did you know this is officially, Mores Code day?


Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.


Mores code

 

开云体育

Did you know this is officially, Mores Code day?


Walt Cates, WD0GOF
?
A majority of acceptance is not proof of correctness.


Re: The First and Last Hallicrafters with Flywheel tuning?

 

开云体育

Thanks Kevin.? You may be correct since that receiver was made up until 1969.? How does the tuning feel on that receiver?? Do you get some sustained spin movement with a flick of the wrist?

73
Don N9OO

On 4/27/25 12:33 AM, Kevin W9CF via groups.io wrote:

The sx-146 has flywheel tuning. It might not be the last, but must be close.?
?
73 Kevin w9cf
Re: The First and Last Hallicrafters with Flywheel tuning?

 

The sx-146 has flywheel tuning. It might not be the last, but must be close.?
?
73 Kevin w9cf
Re: The First and Last Hallicrafters with Flywheel tuning?

 
Edited

That sure is a nice looking SX42! Thanks for the pic!

John K5MO


On Sat, Apr 26, 2025 at 9:49?AM Arthur Smith via <arthurredsox=[email protected]> wrote:
Not the first, or the last, but my SX-42 sure has it.?



On Apr 26, 2025, at 8:37?AM, Don Buska - The Radio Lab Works <don@...> wrote:

? Here's a question that is of general interest to me.? What was the first and last Hallicrafters radio (Receiver or Transceiver) that had a flywheel incorporated into the main frequency tuning?? I do recall in High school our SX-28 indeed had it.? My SX-115 has it (matching HT-32B too).? Did any of the SR series transceivers or later SX-receivers have a flywheel hidden inside?

73
Don N9OO

Re: The First and Last Hallicrafters with Flywheel tuning?

 

开云体育

Richard, it seems to me for older receivers, while tuning across a ham band the weight is not helpful, but when tuning from end to end or the whole dial, it is helpful. So what weight is the best ? zero or 100 ?

PS? is “direct drive” always DIRECT on the cap rotor shaft, or is it geared usually?

?

From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow via groups.io
Sent: Saturday, April 26, 2025 4:09 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] The First and Last Hallicrafters with Flywheel tuning?

?

My S-20r and S-40A? have flywheels on the band spread. It's possible that some receivers have flywheels on the main tuning but I can't think of any hallicrafters that? do. Also, flywheels are found on some direct drive dials, not just strring drive.?

? An interesting? i think flywheels were more more sales gimmicks than practical? devices.

?

ters that do.

?

?

-------- Original message --------

From: "John Watkins via groups.io" <jpwatkins9@...>

Date: 4/26/25 9:28 AM (GMT-08:00)

Subject: Re: [HallicraftersRadios] The First and Last Hallicrafters with Flywheel tuning?

?

My S 20R has one also, made in 1942, was at Camp Pendelton at the NCO club.

?

On Sat, Apr 26, 2025 at 08:49 Arthur Smith via <arthurredsox=[email protected]> wrote:

Not the first, or the last, but my SX-42 sure has it.?

………pic removed….

On Apr 26, 2025, at 8:37?AM, Don Buska - The Radio Lab Works <don@...> wrote:

? Here's a question that is of general interest to me.? What was the first and last Hallicrafters radio (Receiver or Transceiver) that had a flywheel incorporated into the main frequency tuning?? I do recall in High school our SX-28 indeed had it.? My SX-115 has it (matching HT-32B too).? Did any of the SR series transceivers or later SX-receivers have a flywheel hidden inside?

73
Don N9OO

_._,_._,_

_,_


--
don??? va3drl
Re: The First and Last Hallicrafters with Flywheel tuning?

 

开云体育

Good afternoon
The SX-96 has a flywheel also
Bruce

On Apr 26, 2025, at 2:08 PM, Richard Knoppow via <1oldlens1@...> wrote:

My S-20r and S-40A? have flywheels on the band spread. It's possible that some receivers have flywheels on the main tuning but I can't think of any hallicrafters that? do. Also, flywheels are found on some direct drive dials, not just strring drive.?
? An interesting? i think flywheels were more more sales gimmicks than practical? devices.

ters that do.


-------- Original message --------
From: "John Watkins via " <jpwatkins9@...>
Date: 4/26/25 9:28 AM (GMT-08:00)
Subject: Re: [HallicraftersRadios] The First and Last Hallicrafters with Flywheel tuning?

My S 20R has one also, made in 1942, was at Camp Pendelton at the NCO club.

On Sat, Apr 26, 2025 at 08:49 Arthur Smith via <arthurredsox=[email protected]> wrote:
Not the first, or the last, but my SX-42 sure has it.?

<image0.jpeg>

On Apr 26, 2025, at 8:37?AM, Don Buska - The Radio Lab Works <don@...> wrote:

? Here's a question that is of general interest to me.? What was the first and last Hallicrafters radio (Receiver or Transceiver) that had a flywheel incorporated into the main frequency tuning?? I do recall in High school our SX-28 indeed had it.? My SX-115 has it (matching HT-32B too).? Did any of the SR series transceivers or later SX-receivers have a flywheel hidden inside?

73
Don N9OO



Re: The First and Last Hallicrafters with Flywheel tuning?

 

Humphrey Bogart as an exec with an SX 42 in his office. Movie title Sabrina co-starring Audrey Hepburn.?



On Sat, Apr 26, 2025 at 5:37?AM Don Buska - The Radio Lab Works via <don=[email protected]> wrote:

Here's a question that is of general interest to me.? What was the first and last Hallicrafters radio (Receiver or Transceiver) that had a flywheel incorporated into the main frequency tuning?? I do recall in High school our SX-28 indeed had it.? My SX-115 has it (matching HT-32B too).? Did any of the SR series transceivers or later SX-receivers have a flywheel hidden inside?

73
Don N9OO


--
AF6IM
www.parachutemobile.com
121 - 140 of 32101