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Re: 60A225 power/tone switch
开云体育Emil, there must be enough old S-40’s and such around that? a donor part should be available somewhere.? So for now, jump the switch and use an external power switch.. like you mentioned. ? From: [email protected] [mailto:[email protected]] On Behalf Of Jim Whartenby via groups.io
Sent: Sunday, May 18, 2025 12:54 PM To: [email protected] Subject: Re: [HallicraftersRadios] 60A225 power/tone switch ? Emil I understand. I checked my stash of parts and I don't have a direct replacement.? I may have a pot + switch that has a switch assembly that would fit your tone control.? That would still mean that you would have to disassemble your defective switch to make the repair.? So if you run out of options, send, via DM, a photo of the rear of the tone control so that I can check to see if I have a similar switch in the stash. Regards, Jim ? Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy ? ? On Sunday, May 18, 2025 at 04:52:02 AM CDT, Emil via groups.io <wd4scz@...> wrote: ? ? Don't have any other pictures handy, but not hollow rivets as is often seen. It is the head end of the rivets that hold the contacts.The rotary switch that tone control portion works fine, it is the SPST part that has failed. I could sub a switched pot or simply jump it as a solution. Drilling out the rivets and trying to fix the innards is not a step I want to undertake. ? Emil ? On Sunday, May 18, 2025 at 02:58:22 AM EDT, Jim Whartenby via groups.io <old_radio@...> wrote: ? ? Looking at the S-40 schematic, the tone control doesn't have a variable resistance.? It is a four position switch tone control with a SPST AC power switch attached.? The half meg tone pot with power switch goes back to the hallicrafters S-14 which might be the first hallicrafters with a tone control.? The S15 uses a 1meg pot for tone control with an attached power switch. ? The Mallory catalog illustrations at the bottom of page 4 shows rivets.? Illustration M26T actually points out copper rivets.? But Don, you make a valid point, component construction has been improved over the years.? Perhaps Emil can take another photo of the other end of the three "pots"??? ? The rivets I expect to see are rolled rivets.? These were used in the switch that I repaired in a Philco of approximately the same time period, IIRC. Jim ?
-- don??? va3drl |
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Re: 60A225 power/tone switch
Emil I understand. I checked my stash of parts and I don't have a direct replacement.? I may have a pot + switch that has a switch assembly that would fit your tone control.? That would still mean that you would have to disassemble your defective switch to make the repair.? So if you run out of options, send, via DM, a photo of the rear of the tone control so that I can check to see if I have a similar switch in the stash. Regards, Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Sunday, May 18, 2025 at 04:52:02 AM CDT, Emil via groups.io <wd4scz@...> wrote:
Don't have any other pictures handy, but not hollow rivets as is often seen. It is the head end of the rivets that hold the contacts.The rotary switch that tone control portion works fine, it is the SPST part that has failed. I could sub a switched pot or simply jump it as a solution. Drilling out the rivets and trying to fix the innards is not a step I want to undertake. Emil
On Sunday, May 18, 2025 at 02:58:22 AM EDT, Jim Whartenby via groups.io <old_radio@...> wrote:
Looking at the S-40 schematic, the tone control doesn't have a variable resistance.? It is a four position switch tone control with a SPST AC power switch attached.? The half meg tone pot with power switch goes back to the hallicrafters S-14 which might be the first hallicrafters with a tone control.? The S15 uses a 1meg pot for tone control with an attached power switch. The Mallory catalog illustrations at the bottom of page 4 shows rivets.? Illustration M26T actually points out copper rivets.? But Don, you make a valid point, component construction has been improved over the years.? Perhaps Emil can take another photo of the other end of the three "pots"??? The rivets I expect to see are rolled rivets.? These were used in the switch that I repaired in a Philco of approximately the same time period, IIRC. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy |
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Re: 60A225 power/tone switch
Don't have any other pictures handy, but not hollow rivets as is often seen. It is the head end of the rivets that hold the contacts.The rotary switch that tone control portion works fine, it is the SPST part that has failed. I could sub a switched pot or simply jump it as a solution. Drilling out the rivets and trying to fix the innards is not a step I want to undertake. Emil
On Sunday, May 18, 2025 at 02:58:22 AM EDT, Jim Whartenby via groups.io <old_radio@...> wrote:
Looking at the S-40 schematic, the tone control doesn't have a variable resistance.? It is a four position switch tone control with a SPST AC power switch attached.? The half meg tone pot with power switch goes back to the hallicrafters S-14 which might be the first hallicrafters with a tone control.? The S15 uses a 1meg pot for tone control with an attached power switch. The Mallory catalog illustrations at the bottom of page 4 shows rivets.? Illustration M26T actually points out copper rivets.? But Don, you make a valid point, component construction has been improved over the years.? Perhaps Emil can take another photo of the other end of the three "pots"??? The rivets I expect to see are rolled rivets.? These were used in the switch that I repaired in a Philco of approximately the same time period, IIRC. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy |
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Re: 60A225 power/tone switch
Looking at the S-40 schematic, the tone control doesn't have a variable resistance.? It is a four position switch tone control with a SPST AC power switch attached.? The half meg tone pot with power switch goes back to the hallicrafters S-14 which might be the first hallicrafters with a tone control.? The S15 uses a 1meg pot for tone control with an attached power switch. The Mallory catalog illustrations at the bottom of page 4 shows rivets.? Illustration M26T actually points out copper rivets.? But Don, you make a valid point, component construction has been improved over the years.? Perhaps Emil can take another photo of the other end of the three "pots"??? The rivets I expect to see are rolled rivets.? These were used in the switch that I repaired in a Philco of approximately the same time period, IIRC. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Saturday, May 17, 2025 at 05:27:49 PM CDT, don Root <drootofallevil@...> wrote:
Guys , my memory is failing, but? the contacts of most pots/switches that I recall don’t have visible rivets .. do they ?? But maybe some older ones do ?? has anybody got a picture? I looked in here:
? ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow via groups.io
Sent: Saturday, May 17, 2025 2:18 PM To: [email protected] Subject: Re: [HallicraftersRadios] 60A225 power/tone switch ? Sometimes the rivets won't take solder. Scrape both rivets and body. ?Try soldering a again? ?
-- don??? va3drl |
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Re: 60A225 power/tone switch
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Re: 60A225 power/tone switch
开云体育Guys , my memory is failing, but? the contacts of most pots/switches that I recall don’t have visible rivets .. do they ?? But maybe some older ones do ?? has anybody got a picture? I looked in here:
? ? From: [email protected] [mailto:[email protected]] On Behalf Of Richard Knoppow via groups.io
Sent: Saturday, May 17, 2025 2:18 PM To: [email protected] Subject: Re: [HallicraftersRadios] 60A225 power/tone switch ? Sometimes the rivets won't take solder. Scrape both rivets and body. ?Try soldering a again? ?
-- don??? va3drl |
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Re: 60A225 power/tone switch
开云体育I'll try a little solder on the rivets and lugs. From the plug to
the first lug is OK. Nothing on the other side, switch is open at
the rivet. On 5/17/2025 1:27 PM, Jim Whartenby via
groups.io wrote:
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Re: 60A225 power/tone switch
Emil You didn't mention checking to see if the ON / OFF switch rivets are high impedance thus causing the switch to be permanently open.? You could connect an ohmmeter to the line cord? plug and use a pick to probe the switch solder lug / rivet mechanical connection to see if you can read a low resistance on the ohmmeter.? A little solder goes a long way to make a good contact between the rivet and the solder lug.? Been there, done that. Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Saturday, May 17, 2025 at 12:04:48 PM CDT, Emil via groups.io <wd4scz@...> wrote:
The switch action is erratic. Contact cleaner has had no effect.? I could jump the contacts and plug the radio in to a power strip, but if there's an organ donor radio out there with a good switch, I'd like to find it. 73, Emil? de WD4SCZ On 5/17/2025 11:44 AM, Jim Whartenby
via groups.io wrote:
Emil
Does the switch still
"click" when turned to the OFF position?? If so, take a
close look at the switch solder lugs on the switch wafer.?
There should be a rivet on each solder lug that connects to
the internal switch contacts.? Ohm the rivet to rivet
connection to see if the problem is actually corrosion of
the rivets causing them to be insulated from the solder
lugs.? Soldering was earlier suggested for tube sockets that
have ground rings that are also riveted to the chassis.?
Clean and solder the rivets to the tabs as necessary.
If this was not the
problem, try spraying some penetrating oil into the switch
body and exercised the switch several times.? This also
works to eliminate a scratchy volume or tone control
resistive elements.
Regards,
Jim
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Re: 60A225 power/tone switch
开云体育The switch action is erratic. Contact cleaner has had no effect.? I could jump the contacts and plug the radio in to a power strip, but if there's an organ donor radio out there with a good switch, I'd like to find it. 73, Emil? de WD4SCZ On 5/17/2025 11:44 AM, Jim Whartenby
via groups.io wrote:
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Re: 60A225 power/tone switch
Emil Does the switch still "click" when turned to the OFF position?? If so, take a close look at the switch solder lugs on the switch wafer.? There should be a rivet on each solder lug that connects to the internal switch contacts.? Ohm the rivet to rivet connection to see if the problem is actually corrosion of the rivets causing them to be insulated from the solder lugs.? Soldering was earlier suggested for tube sockets that have ground rings that are also riveted to the chassis.? Clean and solder the rivets to the tabs as necessary. If this was not the problem, try spraying some penetrating oil into the switch body and exercised the switch several times.? This also works to eliminate a scratchy volume or tone control resistive elements. Regards, Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy
On Saturday, May 17, 2025 at 05:06:43 AM CDT, Emil via groups.io <wd4scz@...> wrote:
I
need a Hallicrafters part number 60A225 power/tone switch. That is
the same part number for the power/tone switch in the S-40, S-40A,
S-40B, S-85, SX-99 and probably several other Hallicrafters sets
using the essentially the same tube lineup.
It is the SPST switch element that has failed.? The? front rotary wafer element is still working. Emil, WD4SCZ |
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60A225 power/tone switch
开云体育
I
need a Hallicrafters part number 60A225 power/tone switch. That is
the same part number for the power/tone switch in the S-40, S-40A,
S-40B, S-85, SX-99 and probably several other Hallicrafters sets
using the essentially the same tube lineup.
It is the SPST switch element that has failed.? The? front rotary wafer element is still working. Emil, WD4SCZ |
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Re: URM-25D STEP ATTENUATOR
开云体育
Thanks guys, I thought he shut down and sold all his stock. Don't know where I got that idea.
Walt Cates, WD0GOF
?
From: [email protected] <[email protected]> on behalf of robert meadows <rpmeadow@...>
Sent: Friday, May 16, 2025 1:13 PM To: [email protected] <[email protected]> Subject: Re: [HallicraftersRadios] URM-25D STEP ATTENUATOR ?
Call Phil and ask
might still have a few in the remains
R
On Friday, May 16, 2025 at 01:50:10 PM EDT, waltcates via groups.io <cateswa@...> wrote:
Does any know who bought Fair Radios stock of step attenuators for the URM-25?
Walt Cates,
WD0GOF
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Re: URM-25D STEP ATTENUATOR
开云体育
Do you have a number or email for Phil?
Walt Cates, WD0GOF
?
From: [email protected] <[email protected]> on behalf of robert meadows <rpmeadow@...>
Sent: Friday, May 16, 2025 1:13 PM To: [email protected] <[email protected]> Subject: Re: [HallicraftersRadios] URM-25D STEP ATTENUATOR ?
Call Phil and ask
might still have a few in the remains
R
On Friday, May 16, 2025 at 01:50:10 PM EDT, waltcates via groups.io <cateswa@...> wrote:
Does any know who bought Fair Radios stock of step attenuators for the URM-25?
Walt Cates,
WD0GOF
?
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Re: URM-25D STEP ATTENUATOR
开云体育If I had to hazard a guess, "Cornelius Connie"? aka Ashley Hall, W7DUZ at KISS Electronics. They repair at lot of URM-25s Emil WD4SCZ On 16-May-25 14:13, robert meadows
wrote:
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don Root
Jim Whartenby
Emil
waltcates