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Anyone know where a replacement power cord can be obtained that matches the original for a 400-series scope (for U.S. power outlets)? Someone cut the ground pin off of my 465B and I'd like to replace it with a cord like the original (the kind that has the "keeper" clip). Mine is the style that comes out of a plain strain relief (not the larger rubber boot like I've seen on some 465B models).
Thanks,
Barry - N4BUQ
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I have some but they are the ones that come out in the 90 degree rubber boot.
Jim
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That would probably work but I'd have to cut off the boot and I kind of hate to do that as those are hard to find. Perhaps I'll find one of the "plain" style cords.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Jim Olson" <v_12eng@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 9:49:19 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
I have some but they are the ones that come out in the 90 degree rubber boot.
Jim
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I actually have one that is at an angle but it is only a small plastic knob it that helps but all the rest are in the large rubber style boot. I can leave it in the panel if you like that way you don't have to mess around with the lock.
Jim
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Hmmm. I'm not sure if that would work with the existing panel and not sure how much effort it is to replace the entire back panel. Also, shipping would start to climb with the panel and we're virtually on opposite sides of the country. If nothing else turns up, then I might take you up on it.
Truthfully, I wouldn't be terribly concerned about it except that I notice that at a certain, rather slow, sweep speed, there's an AC part that the signals are riding on. If I ground the chassis, that disappears so I'd really like to have that ground connection in the plug.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Jim Olson" <v_12eng@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 10:29:11 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
I actually have one that is at an angle but it is only a small plastic knob
it that helps but all the rest are in the large rubber style boot. I can
leave it in the panel if you like that way you don't have to mess around
with the lock.
Jim
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The panel is easy to get off it is held on just two flat head phillips screws and the fuse cover box it lifts off with the cord attached you just need to take off the wires the ground is bolted to the frame right at the cord in and the white neutral wire is soldered to the fuse box and the power is attached to a blue piece on the main board soldered too.
Jim
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Okay - I'll take a look again at that. Perhaps it isn't as much trouble as I was thinking it was.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Jim Olson" <v_12eng@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 10:51:07 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The panel is easy to get off it is held on just two flat head phillips screws
and the fuse cover box it lifts off with the cord attached you just need to
take off the wires the ground is bolted to the frame right at the cord in
and the white neutral wire is soldered to the fuse box and the power is
attached to a blue piece on the main board soldered too.
Jim
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Okay, Jim. I took a second look and the power entry section is just a small part of the back panel so that would be a fairly easy replacement.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Barry" <n4buq@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 11:14:21 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Okay - I'll take a look again at that. Perhaps it isn't as much trouble as I
was thinking it was.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Jim Olson" <v_12eng@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 10:51:07 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The panel is easy to get off it is held on just two flat head phillips
screws
and the fuse cover box it lifts off with the cord attached you just need to
take off the wires the ground is bolted to the frame right at the cord in
and the white neutral wire is soldered to the fuse box and the power is
attached to a blue piece on the main board soldered too.
Jim
|
I wish to add my two cents...
I purchased some power cord to replace the butched one on my 453 (w/ same wire specs) only to find that it was too big (overall size) to fit the cable clamp on the scope! I was forced to whittle the outside sheath down to get it to fit... I was not happy but did end up with a cord that included a plug with a cord holder.? I learned my lesson; never assume... I know, I know!
Phil
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On 7/25/2018 5:05 PM, n4buq wrote: Okay, Jim. I took a second look and the power entry section is just a small part of the back panel so that would be a fairly easy replacement.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Barry" <n4buq@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 11:14:21 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Okay - I'll take a look again at that. Perhaps it isn't as much trouble as I
was thinking it was.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Jim Olson" <v_12eng@...>
To: [email protected]
Sent: Tuesday, July 24, 2018 10:51:07 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The panel is easy to get off it is held on just two flat head phillips
screws
and the fuse cover box it lifts off with the cord attached you just need to
take off the wires the ground is bolted to the frame right at the cord in
and the white neutral wire is soldered to the fuse box and the power is
attached to a blue piece on the main board soldered too.
Jim
|
Wasn't Tek using Belden power cords at that time?
Michael A. Terrell
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-----Original Message----- From: Phillip Potter <p.potter@...>
Sent: Jul 25, 2018 11:56 PM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
I wish to add my two cents...
I purchased some power cord to replace the butched one on my 453 (w/
same wire specs) only to find that it was too big (overall size) to fit
the cable clamp on the scope! I was forced to whittle the outside sheath
down to get it to fit... I was not happy but did end up with a cord that
included a plug with a cord holder.? I learned my lesson; never
assume... I know, I know!
Phil
|
The manual I have shows a Belden number. I looked for that as well but no luck.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Wednesday, July 25, 2018 11:12:38 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Wasn't Tek using Belden power cords at that time?
Michael A. Terrell
-----Original Message-----
From: Phillip Potter <p.potter@...>
Sent: Jul 25, 2018 11:56 PM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
I wish to add my two cents...
I purchased some power cord to replace the butched one on my 453 (w/
same wire specs) only to find that it was too big (overall size) to fit
the cable clamp on the scope! I was forced to whittle the outside sheath
down to get it to fit... I was not happy but did end up with a cord that
included a plug with a cord holder.? I learned my lesson; never
assume... I know, I know!
Phil
|
They were quite common at one time. They used a thinner outer jacket to make them more flexible. Some computer power cords are similar, and you could cut off the IEC C13 connector.
At one time, I worked for an asset recovery company, and we sold those used Belden cords in batches of 100 from scrapped computer terminals and other minicomputer hardware.
Does anyone have a '70s or '80s Belden catalog to look up the specs?
Michael A. Terrell
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-----Original Message----- From: n4buq <n4buq@...>
Sent: Jul 26, 2018 8:18 AM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The manual I have shows a Belden number. I looked for that as well but no luck.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Wednesday, July 25, 2018 11:12:38 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Wasn't Tek using Belden power cords at that time?
Michael A. Terrell
|
I've considered cutting an IEC cord (hopefully finding a thinner version since, as you point out, the more common styles are thicker) and just using a common velcro wrap as a "keeper". The clip would be nice but having that ground connection is more important to me.
Thanks,
Barry - N4BUQ
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----- Original Message ----- From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Thursday, July 26, 2018 9:54:49 AM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
They were quite common at one time. They used a thinner outer jacket to make
them more flexible. Some computer power cords are similar, and you could cut
off the IEC C13 connector.
At one time, I worked for an asset recovery company, and we sold those used
Belden cords in batches of 100 from scrapped computer terminals and other
minicomputer hardware.
Does anyone have a '70s or '80s Belden catalog to look up the specs?
Michael A. Terrell
-----Original Message-----
From: n4buq <n4buq@...>
Sent: Jul 26, 2018 8:18 AM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The manual I have shows a Belden number. I looked for that as well but no
luck.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Wednesday, July 25, 2018 11:12:38 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Wasn't Tek using Belden power cords at that time?
Michael A. Terrell
|
Some of those cords are shielded, which makes them both larger and stiffer.
I have hundreds of old IEC C13 cords in storage. Next time I can get to them, I'll see if any have the keeper.
Michael A. Terrell
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-----Original Message----- From: n4buq <n4buq@...>
Sent: Jul 26, 2018 11:00 AM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
I've considered cutting an IEC cord (hopefully finding a thinner version since, as you point out, the more common styles are thicker) and just using a common velcro wrap as a "keeper". The clip would be nice but having that ground connection is more important to me.
Thanks,
Barry - N4BUQ
|
Back in February of this year, there was a similar thread titled "Replacing power cords..." There were some ideas there, including a source called Heyco (?)
Good Luck, Colin.
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-----Original Message----- From: [email protected] [mailto: [email protected]] On Behalf Of Phillip Potter Sent: 26 July 2018 04:56 To: [email protected]Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope I wish to add my two cents... I purchased some power cord to replace the butched one on my 453 (w/ same wire specs) only to find that it was too big (overall size) to fit the cable clamp on the scope! I was forced to whittle the outside sheath down to get it to fit... I was not happy but did end up with a cord that included a plug with a cord holder. I learned my lesson; never assume... I know, I know! Phil
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The Heyco reference was mine. They make those plastic, snap in strain reliefs.
It looks like the original Belden part number was: KH5442-290D I found this by searching the Tektronix part number and locating the NSN references. Unfortunately, the description is vague. It is listed as three conductor, and 7.5 feet long with stripped leads on one end.
Michael A. Terrell
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-----Original Message----- From: "Colin Herbert via Groups.Io" <colingherbert@...>
Sent: Jul 26, 2018 12:18 PM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Back in February of this year, there was a similar thread titled "Replacing power cords..." There were some ideas there, including a source called Heyco (?)
Good Luck, Colin.
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That's what I ended up doing. If your feet are in good condition you can
just tuck the plug end between the cord windings and it will stay put.
Paul
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On Thu, Jul 26, 2018 at 11:00:38AM -0400, n4buq wrote: I've considered cutting an IEC cord (hopefully finding a thinner version since, as you point out, the more common styles are thicker) and just using a common velcro wrap as a "keeper". The clip would be nice but having that ground connection is more important to me.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Thursday, July 26, 2018 9:54:49 AM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
They were quite common at one time. They used a thinner outer jacket to make
them more flexible. Some computer power cords are similar, and you could cut
off the IEC C13 connector.
At one time, I worked for an asset recovery company, and we sold those used
Belden cords in batches of 100 from scrapped computer terminals and other
minicomputer hardware.
Does anyone have a '70s or '80s Belden catalog to look up the specs?
Michael A. Terrell
-----Original Message-----
From: n4buq <n4buq@...>
Sent: Jul 26, 2018 8:18 AM
To: [email protected]
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
The manual I have shows a Belden number. I looked for that as well but no
luck.
Thanks,
Barry - N4BUQ
----- Original Message -----
From: "Michael A. Terrell" <mike.terrell@...>
To: [email protected]
Sent: Wednesday, July 25, 2018 11:12:38 PM
Subject: Re: [TekScopes] Looking for Power Cord for 400-series Scope
Wasn't Tek using Belden power cords at that time?
Michael A. Terrell
!DSPAM:5b59daf7142241596617944!
--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
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Michael A. Terrell