开云体育

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date

Re: SX-111 w/speaker FS

 
Edited

The reason I stopped selling on ebay as well as no paypal.

$600 is a ridiculous threshold to trigger a 1099, used to be 20k.

I don't sell much anymore but cash in person (when appropriate) or check / postal money order has worked just fine for me.

Tom
W3TA


-----Original Message-----
From: lfibich@... <lfibich@...>
To: [email protected] <[email protected]>
Sent: Wed, Sep 21, 2022 12:54 pm
Subject: Re: [HallicraftersRadios] SX-111 w/speaker FS

Ebay does the same - why do you think those 87,000 or so IRS agents were wanted - ? to squeeze more money out of ??--- fun times we are living in now.

On Wednesday, September 21, 2022 at 09:41:50 AM PDT, Robert Needleman via groups.io <k3ac@...> wrote:


I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.
?
2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?
?
So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?
?
Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:
?
[Edited Message Follows]
REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 
Edited

Interesting..
As a buyer, Paypal does give me some protection though.? And if I am a seller it does
too.? Except for the new tax implications, it was a good deal for everyone.

Any tax experts here?
If I buy a used broken radio, fix it up, then resell it, can I claim a loss on it considering
I probably have more hours into it than I will ever see as profit.
Considering that I am a degreed retired engineer, what would? a fair labor rate be?
This could be a new income stream..

73,
Gary
WB6OGD

On 09/21/2022 12:54 PM lfibich@... <lfibich@...> wrote:



Ebay does the same - why do you think those 87,000 or so IRS agents were wanted - ? to squeeze more money out of ??--- fun times we are living in now.

On Wednesday, September 21, 2022 at 09:41:50 AM PDT, Robert Needleman via groups.io <k3ac@...> wrote:


I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.

2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?

So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?

Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 
Edited

开云体育

Good points, and there are many other reasons to not use Paypal.? I won’t go into specifics because it could quickly be classified as an off-topic rant, but the underlying corporate policies of Paypal are ethically repugnant.? I don’t sell anything very often, but when doing so I attempt to know the buyer a little bit, and then ship prior to receiving any payment.? Once the item is received, they can just mail me a check or money order.? Never been ripped off.? It’s not for everyone, but it’s worked for me.

?

73 – Steve, KW4H

?

From: <[email protected]> on behalf of "Robert Needleman via groups.io" <k3ac@...>
Reply-To: <[email protected]>
Date: Wednesday, September 21, 2022 at 9:41 AM
To: <[email protected]>, <[email protected]>
Subject: Re: [HallicraftersRadios] SX-111 w/speaker FS

?

I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:

1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.

?

2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?

?

So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?

?

Bob K3AC


In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:

?

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 

Much better!

In a message dated 9/21/2022 12:45:42 PM Eastern Standard Time, Mtniebs@... writes:
?

Good info. Will revise ad.

On Wed, Sep 21, 2022, 9:41 AM Robert Needleman via <k3ac=[email protected]> wrote:
I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.
?
2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?
?
So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?
?
Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:
?

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 
Edited

Ebay does the same - why do you think those 87,000 or so IRS agents were wanted - ? to squeeze more money out of ??--- fun times we are living in now.

On Wednesday, September 21, 2022 at 09:41:50 AM PDT, Robert Needleman via groups.io <k3ac@...> wrote:


I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.
?
2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?
?
So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?
?
Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:
?

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 
Edited

Good info. Will revise ad.


On Wed, Sep 21, 2022, 9:41 AM Robert Needleman via <k3ac=[email protected]> wrote:
I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.
?
2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?
?
So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?
?
Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:
?

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


Re: SX-111 w/speaker FS

 
Edited

I recommend that all sellers of used ham gear stop accepting PayPal (as merchandise). This is for 2 reasons:
1. PayPal now reports all personal sales exceeding $600 annually to IRS, and you will receive a 1099, which the IRS will consider as income and for which you will be responsible for paying income tax on.
?
2. PayPal offers a "buyer's protection" plan on anything paid for 'as merchandise'. This protection plan is good for SIX months after the sale. If the buyer is not fully satisfied with the item, or files an insurance claim, stating only that the item received was not in the condition as described by seller, or defective, the seller will have that amount deducted ("frozen")? immediately from their PayPal account until the claim is resolved. The seller will either have to issue a full refund to buyer upon return of the item, or issue a partial refund to cover the discrepancy in condition or repair costs.?
?
So either way, the seller is going to be screwed by accepting PayPal, as merchandise, especially on vintage gear that is not in the exact condition described by seller, or some issue crops up within SIX months of purchase, and for which the buyer wants a full refund, no questions asked.?
?
Bob K3AC

In a message dated 9/21/2022 10:39:06 AM Eastern Standard Time, Mtniebs@... writes:
?

[Edited Message Follows]

REDUCED! I have a very nice, operational SX-111 with matching speaker for sale. Recapped and new three pronged power cord installed. On air tested. Side by side tests with my FT1000d were very favorable. Both cabinets have been tastefully (albeit not professionally) repainted and look very nice. The only alteration I did was to remove the heating resistor for the VFO that I thought was very poorly mounted. The VFO is very stable after a short warmup without it. I will include it should the new owner wish?to re-install it. Manual included (original MK I, but is almost identical to the basic SX-111). $270 shipped to lower 48. Paypal. OF COURSE NO WARRANTY EXPRESSED OR IMPLIED. ALL SALES FINAL.


How do I spot these two?

 



I have a SX-140 & HT -40.

How do I spot them?

Dave KC3AM


Re: S-40 Restoration - Oddity around V2

 

开云体育

? A comment that the S 40 A has differences from the S 40 and the S 40 B is extensively redesigned.? I think the S 40 B is superior to the earlier models even though many of the changes appear to make it cheaper to make.? ?I also have an S 20 R which is very close electrically to the early S 40.? Since my S 20 R had been somewhat modified an whoever rebuilt it had left out the noise limiter, I modified it to the S 40 A circuit including the detector. Since the S 40 A has a 6SG7 RF in place of the 6SK7 in the S 20 R it has noticeably better performance above about 15 Mhz.? I think it has different RF couls also with higher Q and lower loss.? Hallicrafters restyled several of their pre war receivers after the war but later redesigned them with better circuits and better components.? Keep in mind that following the war price and wage controlls came off so there was.substantial inflation. You can see this in the advertising of the time.? The price targets set for various products went out of line very fast.? I think it surprised a lot of people.





-------- Original message --------
From: "Albert Garrou via groups.io" <albertandjune@...>
Date: 9/19/22 7:53 PM (GMT-08:00)
Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2

After reading Steve’s comment I agree whole heartedly. I am in India and going off memory which isnt too great,
Albert
KR3HAB




On Monday, September 19, 2022, 10:48 PM, KW4H via groups.io <reedsteve@...> wrote:

I found a much more detailed manual for the S-40 and, as it turns out, it has a highly detailed description of most every component.? Very well-written.? Anyway, my question was answered by Phil Patton (thanks!) but I'll share Hallicrafter's info here.? The purpose of R-30 is to suppress parasitic oscillations.? C-16 is the oscillator grid coupling capacitor (obviously), and C-26 is an additional fixed trimmer across the resonant circuit.? Eliminating R-30 is unhelpful, and wiring C-26 directly to the grid of the oscillator is almost certainly an electrical mistake, as it exists as a trimmer for the oscillator circuit, which exists on the other side of C-16.? No question this needs to go back to the factory design -- and I'll have to keep a very close eye out for other little experiments that might exist in this specimen.??

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

 

After reading Steve’s comment I agree whole heartedly. I am in India and going off memory which isnt too great,
Albert
KR3HAB




On Monday, September 19, 2022, 10:48 PM, KW4H via groups.io <reedsteve@...> wrote:

I found a much more detailed manual for the S-40 and, as it turns out, it has a highly detailed description of most every component.? Very well-written.? Anyway, my question was answered by Phil Patton (thanks!) but I'll share Hallicrafter's info here.? The purpose of R-30 is to suppress parasitic oscillations.? C-16 is the oscillator grid coupling capacitor (obviously), and C-26 is an additional fixed trimmer across the resonant circuit.? Eliminating R-30 is unhelpful, and wiring C-26 directly to the grid of the oscillator is almost certainly an electrical mistake, as it exists as a trimmer for the oscillator circuit, which exists on the other side of C-16.? No question this needs to go back to the factory design -- and I'll have to keep a very close eye out for other little experiments that might exist in this specimen.??

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

 

Steve, I would try leaving the mod. Floating 10 ohms from ground is not much different from 0 ohms, and direct coupling of caps is not much of a change. It may add a little sensitivity but may introduce a little bit of “squeaky”. Try it.
Albert
Hallicrafters Rehabs
KR3HAB




On Sunday, September 18, 2022, 9:20 PM, Steven Reed via groups.io <reedsteve@...> wrote:

Glad to have found this group!

I've got an S-40 on the bench -- a restoration project for a friend. ?The receiver belonged to his grandfather (who was licensed), then was passed on to him. ?For the most part, the receiver appears to be all factory, which is always helpful. ?However, his grandfather had been into the radio, and I've found a circuit alteration on V-2 that I'm uncertain about. ?This is a 2nd revision model of the S-40, by the way. ?


The attached schematic shows V-2 and the area around it as originally designed by Hallicrafters. ?Have a look at pin 5 (grid #1) -- the alteration I'm seeing is off of there. ?Here are the changes:
- R30 (10 ohms) is eliminated
- C16 connects directly from pin 5 to S/IF
- C26 connects directly from pin 5 to ground

So, the modification puts three connections on pin 5 -- R7 to ground, C26 to ground, and C16 to S/IF.

Before deciding whether to revert this back to factory, I'm curious as to why this might have been done. ?I've searched online and can't find this modification anywhere. ?

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

 

开云体育

I use my S-40B mostly on 40 and 80 CW, paired with an Elmac AF-67. I also have an R-388, a BC-342, and an NC-183, all of which are "better" than the S-40B, but the S-40B is much more portable for setting up elsewhere and it brings back memories of my Novice days in the 50s when I couldn't have afforded any of the others so I have a lot of fun with it sorting out signals with my ears.

?

The S-40B schematic is lacking R-30 as shown in your schematic for the S-40. The connection is from the oscillator coilset through C16 to pin 5 of V2 with R7 (18 k) from pin 5 to ground.

?

73,

?

Maynard

W6PAP

?

?

On Monday, September 19, 2022 07:09:03 PM KW4H via groups.io wrote:

> Whether it’s Hallicrafters, Hammarlund, National, or almost any of the other

> brands back in the day, people did indeed get what they paid for. And even

> some of the “relatively” higher-end receivers (e.g., Hammarlund HQ-180A)

> were still at least partially deaf on the higher bands. As you so aptly

> pointed out, a lot of it had to do with sales and marketing. One of the

> most sensitive receivers ever to cross my bench was a National HRO-60 – the

> plug-in coils went a long way towards sensitivity on the higher bands – but

> the cost to the purchaser was bananas – about $500 in 1952 dollars. That’s

> about $5,500 today.

>

> 73 – Steve, KW4H

>

> From: <[email protected]> on behalf of Richard Knoppow

> <1oldlens1@...> Reply-To: <[email protected]>

> Date: Monday, September 19, 2022 at 11:50 AM

> To: <[email protected]>

> Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2

>

> I think one problem is rhat Hallicrafters and others pushed the upper limits

> of their receivers for promotional purposes. Using higher Gm tubes in the

> later models helped but I think the rf coils were not up to it. Compare rhe

> performance of an S-40 to an RCA AR 88, the AR 88 has low loss coils and

> very good performance to 30 Mhz. It also cost about ten times as much.

>

>

>

>

?


Re: S-40 Restoration - Oddity around V2

 

In 1959, my novice receiver, an S-40B, did yoeman service on 80, 40, and 15 meters.? I worked many stations on 15, to include a few DX stations.? Not having any reference to compare with at the time, it seemed ok to me.? Got the QSLs to prove it.? In 1960, it was replaced by a brand new SX-99. And so began the trek to now.....? As we speak, there is an S-40B and an SX-99 still in the radio collection area.
Jeep K3HVG

On 09/19/2022 2:50 PM Richard Knoppow <1oldlens1@...> wrote:


I think one problem is rhat Hallicrafters and others pushed the upper limits of their receivers for promotional purposes.? Using higher Gm tubes in the later models helped but I think the rf coils were not up to it.? Compare rhe performance of an S-40 to an RCA AR 88,? the AR 88 has low loss coils and very good performance to 30 Mhz.? It also cost about ten times as much.?






-------- Original message --------
From: MarkJ <BOEING377@...>
Date: 9/19/22 10:19 AM (GMT-08:00)
Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2

Many decades ago I restored an S40. It was my first receiver. My dad bought it used at Fortune Electronics in San Carlos CA for $20. New caps, many out of spec resistors replaced, weak tubes replaced and a full alignment. After all that work, performance at the upper end of its frequency range was still very poor, drifty and deaf. A cheap CB walkie talkie could hear many stations that the restored S40 could not. It’s a nice looking radio but don’t expect too much.?

Mark
AF6IM?

On Sun, Sep 18, 2022 at 12:52 PM Steven Reed via <reedsteve=[email protected]> wrote:
Thanks for the reply, Art.? Many old receivers never did very well on the upper bands -- possibly, it was an experiment to see if fiddling with the oscillator circuit would help.? Unless any other information arises, think I'll just restore it to factory.? I'm used to seeing a lot of modifications and (failed) experiments, but this one is quite a puzzle.??

73 - Steve, KW4H




--
AF6IM
www.parachutemobile.com


Re: S-40 Restoration - Oddity around V2

 

开云体育

Whether it’s Hallicrafters, Hammarlund, National, or almost any of the other brands back in the day, people did indeed get what they paid for.? And even some of the “relatively” higher-end receivers (e.g., Hammarlund HQ-180A) were still at least partially deaf on the higher bands.? As you so aptly pointed out, a lot of it had to do with sales and marketing.? One of the most sensitive receivers ever to cross my bench was a National HRO-60 – the plug-in coils went a long way towards sensitivity on the higher bands – but the cost to the purchaser was bananas – about $500 in 1952 dollars.? That’s about $5,500 today.?

?

73 – Steve, KW4H

?

From: <[email protected]> on behalf of Richard Knoppow <1oldlens1@...>
Reply-To: <[email protected]>
Date: Monday, September 19, 2022 at 11:50 AM
To: <[email protected]>
Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2

?

I think one problem is rhat Hallicrafters and others pushed the upper limits of their receivers for promotional purposes.? Using higher Gm tubes in the later models helped but I think the rf coils were not up to it.? Compare rhe performance of an S-40 to an RCA AR 88,? the AR 88 has low loss coils and very good performance to 30 Mhz.? It also cost about ten times as much.?

?

?

?

?

?


Re: S-40 Restoration - Oddity around V2

 

开云体育

I think one problem is rhat Hallicrafters and others pushed the upper limits of their receivers for promotional purposes.? Using higher Gm tubes in the later models helped but I think the rf coils were not up to it.? Compare rhe performance of an S-40 to an RCA AR 88,? the AR 88 has low loss coils and very good performance to 30 Mhz.? It also cost about ten times as much.?





-------- Original message --------
From: MarkJ <BOEING377@...>
Date: 9/19/22 10:19 AM (GMT-08:00)
Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2

Many decades ago I restored an S40. It was my first receiver. My dad bought it used at Fortune Electronics in San Carlos CA for $20. New caps, many out of spec resistors replaced, weak tubes replaced and a full alignment. After all that work, performance at the upper end of its frequency range was still very poor, drifty and deaf. A cheap CB walkie talkie could hear many stations that the restored S40 could not. It’s a nice looking radio but don’t expect too much.?

Mark
AF6IM?

On Sun, Sep 18, 2022 at 12:52 PM Steven Reed via <reedsteve=[email protected]> wrote:
Thanks for the reply, Art.? Many old receivers never did very well on the upper bands -- possibly, it was an experiment to see if fiddling with the oscillator circuit would help.? Unless any other information arises, think I'll just restore it to factory.? I'm used to seeing a lot of modifications and (failed) experiments, but this one is quite a puzzle.??

73 - Steve, KW4H


--
AF6IM
www.parachutemobile.com


Re: S-40 Restoration - Oddity around V2

 

Mark,

Yeah, a lot of these older sets can be deaf as a doornail on the higher frequencies.? I won't be keeping the S-40 -- it belongs to a good friend who is disabled, and it's a restoration for nostalgic purposes.? His grandfather owned the radio when it was new, then it was passed on to his father, and then to him.??

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

 

Many decades ago I restored an S40. It was my first receiver. My dad bought it used at Fortune Electronics in San Carlos CA for $20. New caps, many out of spec resistors replaced, weak tubes replaced and a full alignment. After all that work, performance at the upper end of its frequency range was still very poor, drifty and deaf. A cheap CB walkie talkie could hear many stations that the restored S40 could not. It’s a nice looking radio but don’t expect too much.?

Mark
AF6IM?

On Sun, Sep 18, 2022 at 12:52 PM Steven Reed via <reedsteve=[email protected]> wrote:
Thanks for the reply, Art.? Many old receivers never did very well on the upper bands -- possibly, it was an experiment to see if fiddling with the oscillator circuit would help.? Unless any other information arises, think I'll just restore it to factory.? I'm used to seeing a lot of modifications and (failed) experiments, but this one is quite a puzzle.??

73 - Steve, KW4H


--
AF6IM
www.parachutemobile.com


Re: S-40 Restoration - Oddity around V2

 

I found a much more detailed manual for the S-40 and, as it turns out, it has a highly detailed description of most every component.? Very well-written.? Anyway, my question was answered by Phil Patton (thanks!) but I'll share Hallicrafter's info here.? The purpose of R-30 is to suppress parasitic oscillations.? C-16 is the oscillator grid coupling capacitor (obviously), and C-26 is an additional fixed trimmer across the resonant circuit.? Eliminating R-30 is unhelpful, and wiring C-26 directly to the grid of the oscillator is almost certainly an electrical mistake, as it exists as a trimmer for the oscillator circuit, which exists on the other side of C-16.? No question this needs to go back to the factory design -- and I'll have to keep a very close eye out for other little experiments that might exist in this specimen.??

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

 

开云体育

Phil...
?
Thanks for the comment!? I wondered about to low value of 10 ohms.
?
73,
ART
W6REQ
?
?

From: Phil Patton
Sent: Sunday, September 18, 2022 3:23 PM
Subject: Re: [HallicraftersRadios] S-40 Restoration - Oddity around V2
?
R30 is almost certainly a grid stopper to suppress spurious oscillations. Unless V2 grid pulls a ton of current (I would expect it to be zero) 10 ohms will have no effect on the signal level. As with many things considered "good engineering practice" eliminating it probably does absolutely nothing!
?
On Sun, Sep 18, 2022, 2:52 PM Steven Reed via <reedsteve@...> wrote:
Thanks for the reply, Art.? Many old receivers never did very well on the upper bands -- possibly, it was an experiment to see if fiddling with the oscillator circuit would help.? Unless any other information arises, think I'll just restore it to factory.? I'm used to seeing a lot of modifications and (failed) experiments, but this one is quite a puzzle.?

73 - Steve, KW4H


Re: S-40 Restoration - Oddity around V2

Phil Patton
 

R30 is almost certainly a grid stopper to suppress spurious oscillations. Unless V2 grid pulls a ton of current (I would expect it to be zero) 10 ohms will have no effect on the signal level. As with many things considered "good engineering practice" eliminating it probably does absolutely?nothing!


On Sun, Sep 18, 2022, 2:52 PM Steven Reed via <reedsteve=[email protected]> wrote:
Thanks for the reply, Art.? Many old receivers never did very well on the upper bands -- possibly, it was an experiment to see if fiddling with the oscillator circuit would help.? Unless any other information arises, think I'll just restore it to factory.? I'm used to seeing a lot of modifications and (failed) experiments, but this one is quite a puzzle.??

73 - Steve, KW4H