Re: S-40B - What is the socket on the back for?
Oh, how I wish my S-120 would pick up FM.? But, then, I'm not the swiftest!? Just joshing.
Any citations of Highway 61 impart temporary "regarded by the French as a genius" status to the poster.
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Re: S-40B - What is the socket on the back for?
In regards to H consumer radios . . .?
I replaced?a filter cap and did a little tune up clean up on an S-120 which was a great little AM/FM and SW radio, I had fun with it.
A friend remembered his grandfather using it and wanted it working again. ?
73,
Trent N4DTF
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Re: S-40B - What is the socket on the back for?
Hello Craig and group
While scouring the www for info I ran across this link re the ?S-40A and B
It seems that much of it is from Riders.
who knows what run[s] it represents.
Again I don¡¯t know what to believe ¡ for the 40B,? the writing says it has PM speaker, but the schematic shows an electro-dynamic? .. did it maybe change in mid-run?
?
Plug for S-meter ?and DC power is shown in the S-40A , but not the B , as most people believe to be true.
The last page partly applies to the Halli S-40's ¡ if you are working on one, you may want to read it.?
73 don VA3DRL
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Re: S-40B - What is the socket on the back for?
Been a long time since I heard that song.? ? ? ? Hallicrafters was good at fitting product to market and very good at having something for each price range .? Constant new products with the newest features although not always well implemented.? ? ?We mostly discuss ham equipment here but H also made consumer radios,? we seldom hear of them ? ?The ham market is small compared to the consumer market so one can understand why H pursued it.?? ??
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Re: S-40B - What is the socket on the back for?
Or, as Bob Dylan said:
Mack the Finger said to Louie the King
"I got forty red, white and blue shoe strings
And a thousand telephones that don't ring
Do you know where I can get rid of these things?"
Louie the King said, "Let me think for a minute, son" And he said, "Yes, I think it can be easily done
Just take it on down to Highway 61"
Bob C. WA9JIB
= = = = =
On Wednesday, January 11, 2023 at 01:38:00 PM PST, KW4H via groups.io <reedsteve@...> wrote:
A moment of humor:? at some point this becomes kind of like examining belly button lint.? When we look back over the decades at some of these designs, we¡¯re looking almost entirely from an engineering/technical perspective ¨C because that¡¯s really all we¡¯ve got.? But the actual truth may lie in something a little more difficult to calculate:? the need for these companies to make a profit, and management driving (or interfering in) engineering decisions.? It could have gone something like this: ¡°We¡¯ve got 500 pre-punched chassis with an extra hole for a feature we didn¡¯t implement ¨C get the summer hires to cover them up!¡± Then, 60 years later, we¡¯re looking at these radios like time capsules and can¡¯t figure out why that extra hole is there with the cover plate. ? 73 ¨C Steve, KW4H
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Re: S-40B - What is the socket on the back for?
A moment of humor:? at some point this becomes kind of like examining belly button lint.? When we look back over the decades at some of these designs, we¡¯re looking almost entirely from an engineering/technical perspective ¨C because that¡¯s really all we¡¯ve got.? But the actual truth may lie in something a little more difficult to calculate:? the need for these companies to make a profit, and management driving (or interfering in) engineering decisions.? It could have gone something like this: ¡°We¡¯ve got 500 pre-punched chassis with an extra hole for a feature we didn¡¯t implement ¨C get the summer hires to cover them up!¡± Then, 60 years later, we¡¯re looking at these radios like time capsules and can¡¯t figure out why that extra hole is there with the cover plate. ? 73 ¨C Steve, KW4H
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Re: S-40B - What is the socket on the back for?
On Wed, Jan 11, 2023 at 11:30 AM, Richard Knoppow wrote:
I was not certain which receivers had the octal socket on the back.? Evidently some receivers have two prong sockets on the back for a remote stand by switch?
?
===END QUOTED?? BEGIN COMMENT====
Hi again Richard, others too.
The s-22¡¯s don¡¯t seem to have an octal or a 2-prong [apparent non polarized power outlet?], as for the others, as Steve said: it¡¯s a mystery/ ¡±the plot thickens¡± , and I say ¡°to every standard there is a deviation¡± nowhere more apparent than in Halli¡¯s. so despite what we read anywhere, you have to look at the real units.
An aside; my Heathkit AR-3 had an octal ¡°accessory¡± socket, mainly to power the QM-1 Q-multiplier.. ?
73?? don VA3DRL
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Re: general question re polarized ac plugs on receivers as shipped originally
On Tue, Jan 10, 2023 at 05:14 PM, dcc98_05 wrote:
Back in the time frame of 1974-75 power tools for CA had to have polarized plug plus double insulated. Most US brands made the switch instead of running 2 production lines. One thing that drives me crazy in old houses was you never knew if the black or white wire was HOT! Then some one installs a modern grounded outlet but no ground wire GRRRR.
=====end quoted? , begin? comments====
Re: Back in the time frame of 1974-75 power tools for CA had to have polarized plug plus double insulated. Most US brands made the switch instead of running 2 production lines. ?
My recollection is that at first, hand-tools had to be 3-wire¡ making a lot of sense for metal frame tools, and later they allowed 2-wire double insulated perhaps more reasonable for plastic cases, but I was not aware of what the CSA standards said.
?
Re: you never knew if the black or white wire was HOT!?
Long before that, the rule was white for neutral. However, once at/inside any non-polarized outlet, any intent to maintain polarization was lost.
?
Re: Then some one installs a modern grounded outlet but no ground wire GRRRR. ?
Well, if the neutral was really white, there is no excuse for not ensuring polarization, as any grounding [3wire] outlet is inherently polarized. If the wiring did have a ground, there is no excuse for not connecting that correctly, but most likely it did not have a ground wire; and that is the problem anywhere. I think there is still an escape clause here for old buildings, that allows a GFCI to be inserted near panel.
73? don VA3DRL
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Re: S-40B - What is the socket on the back for?
Your attachments came through fine.?? I was not certain which receivers had the octal socket on the back.? Evidently some receivers have two prong sockets on the back for a remote stand by switch?
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-------- Original message -------- From: don Root <drootofallevil@...> Date: 1/11/23 10:13 AM (GMT-08:00) Subject: Re: [HallicraftersRadios] S-40B - What is the socket on the back for?
On Wed, Jan 11, 2023 at 02:30 AM, Richard Knoppow wrote:
Of course DC current was available in places other than ships.? For instance large parts of Manhatten had DC until fairly recently.? ?You had to have an AC/DC receiver to work there.? However most AC/DC sets were simply economy models to eliminate the transformer.? Having said this both Radiomarine(RCA) and Mackay made two versions of some receivers : an AC version, for use at land stations and on ships with AC mains,? and an AC/ DC version for use on ships with only DC power.??
=== end quoted, begin comment======== Hi again Richard, others too we began with S-40 & variations, somehow got to Hallicrafters Marine, and now whatever.. so back to Hallicrafters;
Because of the S-40¡¯s? leading to the S-77¡¯s and S-52 and S-51 I looked at these older units ?
the s-22 , and 22R are called marine by Dachis , and? they do LF [low frequency] or,LW [long wave] as well as higher frequencies, and they can be run on DC as well as AC. so i looked at bama manuals for more info and found..
the S-22R and then S-22, are both called marine by Halligan, and both have a LF or LW band and are normally 110 AC/DC
Just for the record, re the S-51, I previously said? ¡°it has the LM marine band¡±¡.that should be ?.. a LF marine band¡± or maybe LW.
Copied from the s-22R manual--------
 -
Looks to me that you could run into 220 vdc? version that appears the same model No
?
Now here is an interesting thing..for another day...
Copied from the s-22R manual---------
..there appears to be no octal socket for DC
Copied from the s-22[no R] bama manual maybe a riders appendix---------
thats enuff .. hope copies go thru, and are not a violation of rules? .. 73 again?? don VA3DRL
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Re: S-40B - What is the socket on the back for?
Your attachments came through fine.?? I was not certain which receivers had the octal socket on the back.? Evidently some receivers have two prong sockets on the back for a remote stand by switch?
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Show quoted text
-------- Original message -------- From: don Root <drootofallevil@...> Date: 1/11/23 10:13 AM (GMT-08:00) Subject: Re: [HallicraftersRadios] S-40B - What is the socket on the back for?
On Wed, Jan 11, 2023 at 02:30 AM, Richard Knoppow wrote:
Of course DC current was available in places other than ships.? For instance large parts of Manhatten had DC until fairly recently.? ?You had to have an AC/DC receiver to work there.? However most AC/DC sets were simply economy models to eliminate the transformer.? Having said this both Radiomarine(RCA) and Mackay made two versions of some receivers : an AC version, for use at land stations and on ships with AC mains,? and an AC/ DC version for use on ships with only DC power.??
=== end quoted, begin comment======== Hi again Richard, others too we began with S-40 & variations, somehow got to Hallicrafters Marine, and now whatever.. so back to Hallicrafters;
Because of the S-40¡¯s? leading to the S-77¡¯s and S-52 and S-51 I looked at these older units ?
the s-22 , and 22R are called marine by Dachis , and? they do LF [low frequency] or,LW [long wave] as well as higher frequencies, and they can be run on DC as well as AC. so i looked at bama manuals for more info and found..
the S-22R and then S-22, are both called marine by Halligan, and both have a LF or LW band and are normally 110 AC/DC
Just for the record, re the S-51, I previously said? ¡°it has the LM marine band¡±¡.that should be ?.. a LF marine band¡± or maybe LW.
Copied from the s-22R manual--------
 -
Looks to me that you could run into 220 vdc? version that appears the same model No
?
Now here is an interesting thing..for another day...
Copied from the s-22R manual---------
..there appears to be no octal socket for DC
Copied from the s-22[no R] bama manual maybe a riders appendix---------
thats enuff .. hope copies go thru, and are not a violation of rules? .. 73 again?? don VA3DRL
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Re: S-40B - What is the socket on the back for?
On Wed, Jan 11, 2023 at 02:30 AM, Richard Knoppow wrote:
Of course DC current was available in places other than ships.? For instance large parts of Manhatten had DC until fairly recently.? ?You had to have an AC/DC receiver to work there.? However most AC/DC sets were simply economy models to eliminate the transformer.? Having said this both Radiomarine(RCA) and Mackay made two versions of some receivers : an AC version, for use at land stations and on ships with AC mains,? and an AC/ DC version for use on ships with only DC power.??
=== end quoted, begin comment======== Hi again Richard, others too we began with S-40 & variations, somehow got to Hallicrafters Marine, and now whatever.. so back to Hallicrafters;
Because of the S-40¡¯s? leading to the S-77¡¯s and S-52 and S-51 I looked at these older units ?
the s-22 , and 22R are called marine by Dachis , and? they do LF [low frequency] or,LW [long wave] as well as higher frequencies, and they can be run on DC as well as AC. so i looked at bama manuals for more info and found..
the S-22R and then S-22, are both called marine by Halligan, and both have a LF or LW band and are normally 110 AC/DC
Just for the record, re the S-51, I previously said? ¡°it has the LM marine band¡±¡.that should be ?.. a LF marine band¡± or maybe LW.
Copied from the s-22R manual--------
 -
Looks to me that you could run into 220 vdc? version that appears the same model No
?
Now here is an interesting thing..for another day...
Copied from the s-22R manual---------
..there appears to be no octal socket for DC
Copied from the s-22[no R] bama manual maybe a riders appendix---------
thats enuff .. hope copies go thru, and are not a violation of rules? .. 73 again?? don VA3DRL
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Randy
Right now im just needing the audio transformer, minds open on one side of tap, and also need band spread dial, minds cracked. Maybe you have these items?
Thanks for reply
Dan KD5MV
On Tuesday, January 10, 2023, 12:23:06 PM CST, wn9d <wn9d@...> wrote:
Hi Dan, I have an SX-25 I was planning to part out.? Please let me know what else you may possibly need.
'73, Randy WN9D
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Randy...would you happen to have the clear tuning and bandspead dial windows (if in good shape)?
Thank you.
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Re: S-40B - What is the socket on the back for?
My S-40B has the riveted in place cover with "STANDBY" stamped underneath it just like yours.
?
73,
?
Maynard
W6PAP
?
?
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On Tuesday, January 10, 2023 11:37:49 PM KW4H via groups.io wrote:
> Well, so the plot thickens. I have an S-40B here under the bench for
> eventual restoration and pulled it out and had a closer look. Attached is a
> photo of where the power cord enters and the covered-up opening to the
> right of it. Engraved in the metal below the opening is ¡°Standby¡±. Hmmm!
> Still, that covered-up jack is in the location where a DC power input
> socked USED to be on the S-40. It would appear that, for the S-40B, this
> was intended (if designed into the radio) to be for a remote standby
> switch. I have never seen a S-40B with that feature wired in.
>
> 73 ¨C Steve, KW4H
>
> From: <[email protected]> on behalf of don Root
> <drootofallevil@...> Reply-To: <[email protected]>
> Date: Tuesday, January 10, 2023 at 2:40 PM
> To: <[email protected]>
> Subject: Re: [HallicraftersRadios] S-40B - What is the socket on the back
> for?
>
> Craig and Steve mainly
> here I am still confused as usual but ,back up top Craig seemed to ask about
> a two prong socket which perhaps we can also see on Jeep's picture, and
> Steve replied that it was a "DC power connection" my thought is that the
> S-40 had an octal socket to allow for "a DC power connection" which was
> abandoned in the B version. so am puzzled about that.
> Craig mentions having an S-40B as well as an SC-40B; I wonder if the latter
> is a "U" version perhaps not/poorly marked, but with a large nameplate
> frequency range, and maybe voltage too?? 73 don VA3DRL
> === pasted-in quoted reference=== I CANT GET THE QUOTE TO WORK NOW=
>
> That was a DC power connection, which was eliminated in the S-40B.
> Hallicrafters covered up the outlet with a metal plate.
>
> 73 ¨C Steve, KW4H
>
> Subject: [HallicraftersRadios] S-40B - What is the socket on the back for?
>
> I have an S-40B that I picked up recently and am currently refurbishing it.
>
> I am wondering what the two-prong outlet, to the right of the power cord,
> is. My SC-40B does not have this, only a plate riveted over the hole.
>
> Thanks.
>
> Craig, VE3OP
> ====end quote=== and reply==
>
>
>
>
>
>
?
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Re: S-40B - What is the socket on the back for?
Of course DC current was available in places other than ships.? For instance large parts of Manhatten had DC until fairly recently.? ?You had to have an AC/DC receiver to work there.? However most AC/DC sets were simply economy models to eliminate the transformer.? Having said this both Radiomarine(RCA) and Mackay made two versions of some receivers : an AC version, for use at land stations and on ships with AC mains,? and an AC/ DC version for use on ships with only DC power.??
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-------- Original message -------- From: don Root <drootofallevil@...> Date: 1/11/23 12:22 AM (GMT-08:00) Subject: Re: [HallicraftersRadios] S-40B - What is the socket on the back for?
On Tue, Jan 10, 2023 at 06:29 PM, Richard Knoppow wrote:
Don't confuse receivers intended to receive MF marine frequencies with those which could operate? from the mains current avaliable on ships,, namely 110 VDC.? Many receivers adapted to receive marine frequencies were also adapted for ship board power
hi richard "dont confuse"? is? a simple; but, which models are in which marine category?? and what makes it so?? i see Halligan calling the S-51 a marine? receiver, and it has the LM marine band and the MF bands, while the s-52 was not called marine, in the catalogue, and didn't have the DC power pack accessories as listed for the S-51 in those days a ship needed LF , the problem of Marine goes away if we just mention the bands, and all the PS arrangements for a receiver. 73 don VA3DRL
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Re: S-40B - What is the socket on the back for?
On Tue, Jan 10, 2023 at 06:29 PM, Richard Knoppow wrote:
Don't confuse receivers intended to receive MF marine frequencies with those which could operate? from the mains current avaliable on ships,, namely 110 VDC.? Many receivers adapted to receive marine frequencies were also adapted for ship board power
hi richard "dont confuse"? is? a simple; but, which models are in which marine category?? and what makes it so?? i see Halligan calling the S-51 a marine? receiver, and it has the LM marine band and the MF bands, while the s-52 was not called marine, in the catalogue, and didn't have the DC power pack accessories as listed for the S-51 in those days a ship needed LF , the problem of Marine goes away if we just mention the bands, and all the PS arrangements for a receiver. 73 don VA3DRL
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Re: S-40B - What is the socket on the back for?
On Tue, Jan 10, 2023 at 06:10 PM, Richard Knoppow wrote:
Correction: the S-77 is AC/DC of the S-40B .? The socket is to run the receiver from batteries.? I did not look at the schematic to see how it's arranged.? On the AC only version the filaments are in parallel and run off? 6 volt battery while a seperate B battery supplies the plate voltage.? The filaments on the S-77 are in series so, presumably everything can run off a single battery in the absence of a DC main supply. So, the S-77 is really a three-way receiver: AC, DC and batteries.
====end quote? ,, begin comments==== hi again Richard and others I hate to quibble, but i looked up some info and saw a rear pic of the S-77 and has no octal socket and not much at all, but the S-77A schematic clearly has an octal socket, largely for DC of some sort. as for the S-40B; they say it has no octal receptacle while earlier versions do. so I am left wondering more than before 73 ? ?? don VA3DRL?
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Thanks?Jim,
That confirms what I learned today. When I got it out
and disassembled, I found that only one of the pair was corroded. The one that appeared to be good measured 92pf. The bad one measured 13pf.
?Walt Cates,
WD0GOF
?
Your past has no control over your future. Only your NOW can impact your future.
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Hi Walt!
?? Here's the repair note I have for my own SR-400 concerning T3:
21.?? Thermal intermittent internal disc ceramic caps in T3.??
Replaced with 82 pF mica caps internally; 10 pF mica caps externally to equal approximately 90 pF original value.
? T3 tuned up nicely after this change, so 90 to 92 pF must be pretty close.?? I wasn't able to find a 90 pF capacitor and there wasn't room in the can for two caps on each side, so I mounted the two 82 pF internally and bridged the can terminals under the
chassis with two 10 pF.?? I assumed that I might have to tailor this value a bit and so the under-chassis location of these caps seemed OK to me.?? As it turned out, T3 aligned just fine; no change in value of the smaller caps was required.
Good Luck,
--
Jim T.
KB6GM
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Re: S-40B - What is the socket on the back for?
?Don't confuse receivers intended to receive MF marine frequencies with those which could operate? from the mains current avaliable on ships,, namely 110 VDC.? Many receivers adapted to receive marine frequencies were also adapted for ship board power. There were several "marine" bands.? Most commonly used was the medium frequency band extending below the standard broadcast band.? It included the 500 Khz emergency frequency, a frequency for direction finding, non directional beacons and some other services.? Then there were several HF bands including allocations for radio- telephone.? There also special receivers meant to be part of communications rigs on larger vessels.? Usually, at least one covered the low frequency bands typically combined with the MF band with a second receiver covering MF anb HF, the overlap covering the international distress frequency allowing the two to back each other up. Receiversike the S-77 were meant for smaller ships and yachts.
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-------- Original message -------- From: don Root <drootofallevil@...> Date: 1/10/23 5:36 PM (GMT-08:00) Subject: Re: [HallicraftersRadios] S-40B - What is the socket on the back for?
On Tue, Jan 10, 2023 at 03:36 PM, Richard Knoppow wrote:
Marine version has an AC/DC power supply to operate on ships which have only DC mains.? The S-77 is the marine version of the S-40
=== end quote begin comment===== hi Richard again ,and others i don't understand your wording ... I can see that the S-40 [no B] has an octal socket? not a supply? to allow it to be connected to some? DC from somewhere, rather than AC I can also see the S-77A has an octal socket? for? asimilar purpose, and? voltages=? while the normal plug can work on AC or DC. ?if the octal socket scheme justifies "marine"? ok .. but .hold on... my Osterman's calls the s-51 [sea arer] a "marine band" receiver and then list band 1 as .132 to .405 Mcees--- looks like "marine" to me. The next listing is the S-52? also called "marine band" but bands are typical of most SW receivers, and don't look "marine" to me.
halli listing in catalog?? saysS-51 Marine ReceiverRugged and specially constructed for dependable seaor air use. Range 132 KC to 13 MC covers all impor-tant channels. Fixed frequency operation possible onthree pre-tuned channels; facilitates switching fre-quency and/or standing guard. Built-in PM speaker.CONTROLS: Band Selector ¡ª 132-405 KC, 485-1530KC, 1450-4550 KC, 4.2-13.0 MC, plus 3 fixed freq. posi-tions in 200-300 KC and 2-3 MC range; RF gain,Volu me, C W/A M, Range Filter, ANL, Tuning, 3 posi-tion Tone, C W Pitch, Rec./Standby. Gray steel cab-inet: 18 % by 9 by 9% in. deep; piano hinge top.Doublet or single wire antenna. Phone jack. Socket for6, 12, or 32 v. vibrapack. 105-125 v. 50-60 cycle AC or DC.9 TUBES PLUS RECTIFIER: 6SS7 RF Amp., 7A8Cony., two 6SS7's IF Amps., 7C6 Det., 35L6 or 6V6Output, 7A6 Noise Li miter, 6SS7 BFO, 35Z5 Rectifier.S-51. Ship. wt. 31 lbs Amateur Net $149.50Vibrapack for 6, 12, or 32 v. operation
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Re: SR-400 Cyclone VOX problem
Greetings to Walt and the Group:
?? Thank You for the data.?? I will attempt those measurements as soon as I am able.?? Had out-patient back surgery this morning and I am in a bit of pain; also, I'm not supposed to lift more than four pounds.?? So, I'm going to have to get my wife to upend the SR-400 for me so I can make the measurements.?? I'm probably going to wait a couple of days til the worst of the pain subsides.
?? I will get the data as soon as I reasonably can and will post it here.
Thanks again,
--
Jim T.
KB6GM
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Trent N4DTF EM55
don Root
waltcates