Re: Repairing plated through holes.
I had two sizes, one for 6-32 that used the small hole. the other was for 10-32, and it used the large hole. they were just a smooth, hardened steel shank, with just enough threads at one end to reach the bottom of the Rivnut. I got the small one in the boxes of 100, and the large one was in a retail pack of 25.
<>
This page shows how to do it with a bolt, two washers and two nuts. One nut is oversized, and is just a spacer. I would use the right size of drill stop, and that would eliminate the large nut and one washer.
They were over $10.00 a box, but that surplus dealer had over 1000 boxes that were likely bought by the pound like the other hardware. there were 100 boxes per case, and I should have bought a case, instead of four boxes.
Michael A. Terrell
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-----Original Message----- From: stefan_trethan <stefan_trethan@...>
Sent: Jun 16, 2018 11:46 AM
To: [email protected]
Subject: Re: [TekScopes] Repairing plated through holes.
You can still buy the pop rivet nuts, but much more $$ than that.
You said they use an adapter, I have never seen that. Around here you
need to buy a dedicated rivet nut tool for around $100 (which looks
much like a slightly modified $20 pop rivet tool).
I always speculated that they are set just like a pop rivet, but with
a threaded rod instead of the discardable metal shank in a regular
rivet.
My plan was, should I ever need to set a rivet nut, that I would take
a hard screw and put that in the rivet, and pull on the screw from the
outside with a washer and a nut.
Do you have any opinion if that plan might succeed? I have been
curious about it for years.
ST
On Sat, Jun 16, 2018 at 5:40 PM, Michael A. Terrell
<mike.terrell@...> wrote:
They also made the rivnut,which is an internally threaded version of a pop rivet that used an adapter to set with a pop rivet tool. I used them in some projects. I wished that I had boght more of them, surplus. They were 50 cents/100 in USM boxes.
|
Re: Repairing plated through holes.
On Sat, 16 Jun 2018 11:40:15 -0400 (GMT-04:00), you wrote: They also made the rivnut,which is an internally threaded version of a pop rivet that used an adapter to set with a pop rivet tool. I used them in some projects. I wished that I had boght more of them, surplus. They were 50 cents/100 in USM boxes. Harbor freight has them, aluminum, of course. Amazon seems to have tons of them, but not at 50 cents/100, sadly. Harvey
Michael A. Terrell
-----Original Message-----
From: "ebrucehunter via Groups.Io" <Brucekareen@...>
Sent: Jun 16, 2018 10:46 AM
To: [email protected]
Subject: Re: [TekScopes] Repairing plated through holes.
About 50 years ago I purchased an eyelet press from Kepco, a company that then sold printed circuit board materials. At the time they offered a variety of different diameter rivets, of different lengths, and in both copper and brass. The press came with a number of special tips needed for the different size rivets. I was later able to fabricate special tips to also set Vector, rivet-type terminals.
Unfortunately, as a previous contributor has remarked, these eyelets almost always eventually gave trouble if not carefully soldered to the foil on both sides. Even soldered eyelets sometimes gave trouble, probably because, as another has mentioned, you need a little space under the head for solder to properly flow.
In looking at the press, I saw something I had never noticed before. The press was made in Italy by United Shoe Machinery, the company that made eyeletting machinery for the shoe industry and the original developer of the pop-rivet.
Bruce, KG6OJI
|
Re: S6 Sampling Head Bridge Cavity Question
If I look back on my life it has been filled with similar behavior. There are
two possible outcomes: 1) I admit that I broke it (whatever it was) and I have
to face the consequences, or 2) I have an "Oh Shit" moment followed by a
desperate scramble to first figure out what happened and then I start a
desperate search for a solution. Oh but you are definitely not alone on that ;-) I had a good laugh when I saw which (apart from the time axis scaling) seemed awfully familiar ... Cheers Peter
|
Re: Repairing plated through holes.
Mouser stocks several sizes of staking tools from Keystone that might come in handy. Not really cheap, but I have one of the sets (don't remember which one) that I use when I need to stake a terminal onto a PCB. Keystone part nos TL-20, TL-21 and TL-22. These are made primarily for staking turret terminals onto a PCB, but also work well with larfer eyelets and rivets.
Cheers,
Dave M
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On Sat, Jun 16, 2018 at 04:48 am, lop pol wrote:
On Sat, Jun 16, 2018 at 03:27 am, David M wrote:
Search Ebay for Copper Via Rivets. They are available in several diameters
and lengths. You'll have to come up with your own method and tooling to
stake
them to the PCB, but shouldn't be difficult.
Small nails, small hole punch, etc. should to the trick. Yankee ingenuity
rules.
Cheers,
Dave M
On Fri, Jun 15, 2018 at 07:28 pm, lop pol wrote:
I would like to affordably put together the things needed to repair plated
through holes. Anyone have any thoughts? I'm asking because I dont want
to
buy this more than once. My pocket has not much room for mistakes right
now
and i seem to do a lot better asking here before buying. Thanks guys
Ok. That is what I will do. The rivets/eyelets are really cheap most under .25
cents a piece at Mouser. I have a bunch of different punches so I will figure
something out. Thanks for the input.
|
Re: Up to date capacitor list for Tek 2465A and 2465B scopes (2018)
Lots of parts leads to confusion, its all good. Once this is done it will be good for a year or two at least.
Here is another correction
C1113 180 ?F 40 ELCTLT 330 ?F 50
C1114 250 ?F 100 ELCTLT 330 ?F 50
Should be...
C1113 180 ?F 100 ELCTLT 330 ?F 160
C1114 250 ?F 100 ELCTLT 330 ?F 160
To the A5 listing please add:
C2010 33 ?f 10 ELCTLT 33 ?F 10
I have not looked at the A1 board yet, but I will let you know if I find anything there
|
Re: Tek 2337 (looks mint) on Goodwill.
Looks like it is very clean, If I still lived in Ft worth I'd run over and turn it on to check it out. has probes and all.
100MHz Analog Scope ( later 150MHz version I think) plus a built in DMM
More info over on Tekwiki
Godwill in the auction business ..who knew
-DC
manuals@...
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On 6/16/2018 11:47 AM, David Berlind wrote: I'm sure everyone here has seen one of these. But I haven't. Is it some sort of hack of a digital scope? It looks mint (and cool).
I have no affiliation with the seller.
--
Dave
Manuals@...
www.ArtekManuals.com
|
Re: Repairing plated through holes.
Pace made a "fused eyelet setter" .
This was an eyelet staking tool that ran high current, low voltage through the eyelet after the eyelet was staked and while the eyelet was still under compression.
This fused the flared part of the eyelet to the lands.
Motorola used eyeletted boards in some of their two way radios.
This was the major source of failure as the eyelet solder connection broke free of the lands.
The fix for this was to resolder all of the eyeletted connections on both the top and bottom of the board.
One source of PCB repair things is
Glenn
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On 6/15/2018 10:28 PM, lop pol via Groups.Io wrote: I would like to affordably put together the things needed to repair plated through holes. Anyone have any thoughts? I'm asking because I dont want to buy this more than onct setter"e. My pocket has not much room for mistakes right now and i seem to do a lot better asking here before buying. Thanks guys
--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
|
Tek 2337 (looks mint) on Goodwill.
I'm sure everyone here has seen one of these. But I haven't. Is it some sort of hack of a digital scope? It looks mint (and cool).
I have no affiliation with the seller.
|
Re: Repairing plated through holes.
You can still buy the pop rivet nuts, but much more $$ than that. You said they use an adapter, I have never seen that. Around here you need to buy a dedicated rivet nut tool for around $100 (which looks much like a slightly modified $20 pop rivet tool). I always speculated that they are set just like a pop rivet, but with a threaded rod instead of the discardable metal shank in a regular rivet. My plan was, should I ever need to set a rivet nut, that I would take a hard screw and put that in the rivet, and pull on the screw from the outside with a washer and a nut. Do you have any opinion if that plan might succeed? I have been curious about it for years. ST On Sat, Jun 16, 2018 at 5:40 PM, Michael A. Terrell <mike.terrell@...> wrote: They also made the rivnut,which is an internally threaded version of a pop rivet that used an adapter to set with a pop rivet tool. I used them in some projects. I wished that I had boght more of them, surplus. They were 50 cents/100 in USM boxes.
Michael A. Terrell
|
Re: Repairing plated through holes.
They also made the rivnut,which is an internally threaded version of a pop rivet that used an adapter to set with a pop rivet tool. I used them in some projects. I wished that I had boght more of them, surplus. They were 50 cents/100 in USM boxes.
Michael A. Terrell
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Show quoted text
-----Original Message----- From: "ebrucehunter via Groups.Io" <Brucekareen@...>
Sent: Jun 16, 2018 10:46 AM
To: [email protected]
Subject: Re: [TekScopes] Repairing plated through holes.
About 50 years ago I purchased an eyelet press from Kepco, a company that then sold printed circuit board materials. At the time they offered a variety of different diameter rivets, of different lengths, and in both copper and brass. The press came with a number of special tips needed for the different size rivets. I was later able to fabricate special tips to also set Vector, rivet-type terminals.
Unfortunately, as a previous contributor has remarked, these eyelets almost always eventually gave trouble if not carefully soldered to the foil on both sides. Even soldered eyelets sometimes gave trouble, probably because, as another has mentioned, you need a little space under the head for solder to properly flow.
In looking at the press, I saw something I had never noticed before. The press was made in Italy by United Shoe Machinery, the company that made eyeletting machinery for the shoe industry and the original developer of the pop-rivet.
Bruce, KG6OJI
|
Re: Repairing plated through holes.
The key is the eyelet technique only works with two layer boards. The art
techniques for rebuilding through holes and multi-layer boards but it's not
something you do yourself although I tried it a couple times by building my
own Electrolux replating set up.
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On Fri, Jun 15, 2018, 10:38 PM Harvey White <madyn@...> wrote: On Fri, 15 Jun 2018 20:33:52 -0700, you wrote:
On Fri, Jun 15, 2018 at 08:17 pm, Mark Goldberg wrote:
Do a search for "eyelet plated through hole" and you will find eyelets
designed for that purpose. I do not know what kind of tooling they may
or
may not require. I have also used just a piece of wire bent through the
hole and onto the pads on two sides, but that is not the "official"
method.
Regards,
Mark
I see the eyelets on mouser are cheap. What im really wondering about is
the staking tool and which one to get.
You could likely make one. You'd need something for an anvil, could
easily be made from a 4mm or so rod, put a handle on it. The "hammer"
part could be made from an automatic center punch with a different
punch part. They're made to be removed. You'd want a design that
curled the end of the rivet over.
Note that eyelets work best if they are either solid copper, or tinned
copper. I'm not sure that any other variety would even accept solder.
Also, you may have to drill out the hole a bit if you are trying to
get the same inside diameter. A third (and slightly fatal) problem is
that I can't see any way to make this work on multi-layer boards.
Double sided is the most. It could hold down lifting foil on a single
sided board, also.
A little lathe work (if you have one) and it might just come together.
Harvey
|
Re: Repairing plated through holes.
About 50 years ago I purchased an eyelet press from Kepco, a company that then sold printed circuit board materials. At the time they offered a variety of different diameter rivets, of different lengths, and in both copper and brass. The press came with a number of special tips needed for the different size rivets. I was later able to fabricate special tips to also set Vector, rivet-type terminals.
Unfortunately, as a previous contributor has remarked, these eyelets almost always eventually gave trouble if not carefully soldered to the foil on both sides. Even soldered eyelets sometimes gave trouble, probably because, as another has mentioned, you need a little space under the head for solder to properly flow.
In looking at the press, I saw something I had never noticed before. The press was made in Italy by United Shoe Machinery, the company that made eyeletting machinery for the shoe industry and the original developer of the pop-rivet.
Bruce, KG6OJI
|
No coffee yet this morning, I missed one of the 3s :-)
Paul
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On Sat, Jun 16, 2018 at 10:27:42AM -0400, Artekmedia wrote: Paul
The 3330B is a Voltage/Current Calibrator
-DC
manuals@...
On 6/16/2018 10:20 AM, Paul Amaranth wrote:
Are you sure about that model number? A fluke 330b comes up as a
clamp on hand held. Voltage standards were 332, 335, etc.
From the context I'm assuming you're talking about one of the 80 pound voltage standards.
There is a volt-nuts (metrology) subgroup on eevblog with discussions
on these along with some very knowledgeable people who can help. I
have a 332b, pretty amazing piece of equipment.
Get a manual and be extremetly careful when that thing is on if you
have the cover off. I think that inner cover can be at 1KV.
Paul
On Sat, Jun 16, 2018 at 09:57:22AM -0400, Artekmedia wrote:
Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote:
I have a fluke 3330b , have no output . I am not sure where to post for a
fluke but i figured someone could point me in the correct direction for a
group that can help me , or if someone here knows anything about going
about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
--
Dave
Manuals@...
www.ArtekManuals.com
!DSPAM:5b25176616721668650994!
--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
|
Go over to where there is a TONNE of experience on a broader scale.
|
I am sure about the model 3330b is the correct info , i have a download for the manual but am having trouble with tracking down why it will not output , to me it seems as if the unit has no power at the mother board , there was a bad bux48a and a bad 2n2869 and a bad 250uf . I am stumped? On Sat, Jun 16, 2018 at 10:20 AM, Paul Amaranth<paul@...> wrote: Are you sure about that model number?? A fluke 330b comes up as a clamp on hand held.? Voltage standards were 332, 335, etc. From the context I'm assuming you're talking about one of the 80 pound voltage standards. There is a volt-nuts (metrology) subgroup on eevblog with discussions on these along with some very knowledgeable people who can help.? I have a 332b, pretty amazing piece of equipment. Get a manual and be extremetly careful when that thing is on if you have the cover off.? I think that inner cover can be at 1KV. ? Paul
On Sat, Jun 16, 2018 at 09:57:22AM -0400, Artekmedia wrote: Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote:
I have a fluke 3330b , have no output . I am not sure where to post for a
fluke but i figured someone could point me in the correct direction for a
group that can help me , or if someone? here knows anything about going
about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
!DSPAM:5b25107313919973180691!
--
Paul Amaranth, GCIH? | Rochester MI, USA? ? ? ? ? ? ?
Aurora Group, Inc.? |? Security, Systems & Software
paul@...? |? Unix & Windows
|
Paul
The 3330B is a Voltage/Current Calibrator
-DC
manuals@...
toggle quoted message
Show quoted text
On 6/16/2018 10:20 AM, Paul Amaranth wrote: Are you sure about that model number? A fluke 330b comes up as a
clamp on hand held. Voltage standards were 332, 335, etc.
From the context I'm assuming you're talking about one of the 80 pound voltage standards.
There is a volt-nuts (metrology) subgroup on eevblog with discussions
on these along with some very knowledgeable people who can help. I
have a 332b, pretty amazing piece of equipment.
Get a manual and be extremetly careful when that thing is on if you
have the cover off. I think that inner cover can be at 1KV.
Paul
On Sat, Jun 16, 2018 at 09:57:22AM -0400, Artekmedia wrote:
Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote:
I have a fluke 3330b , have no output . I am not sure where to post for a
fluke but i figured someone could point me in the correct direction for a
group that can help me , or if someone here knows anything about going
about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
!DSPAM:5b25107313919973180691!
--
Dave
Manuals@...
www.ArtekManuals.com
|
Looks like it has moved to Groups.io /g/Fluke-DMMMichael A. Terrell
-----Original Message----- From: Artekmedia <manuals@...>
Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
On 6/16/2018 9:31 AM, Oliver Johnson via Groups.Io wrote:
I have a fluke 3330b , have no output . I am not sure where to post for a Fluke but i figured someone could point me in the correct direction for a group that can help me , or if someone here knows anything about going about fixing this voltage standard.
|
Are you sure about that model number? A fluke 330b comes up as a
clamp on hand held. Voltage standards were 332, 335, etc.
From the context I'm assuming you're talking about one of the
80 pound voltage standards.
There is a volt-nuts (metrology) subgroup on eevblog with discussions
on these along with some very knowledgeable people who can help. I
have a 332b, pretty amazing piece of equipment.
Get a manual and be extremetly careful when that thing is on if you
have the cover off. I think that inner cover can be at 1KV.
Paul
toggle quoted message
Show quoted text
On Sat, Jun 16, 2018 at 09:57:22AM -0400, Artekmedia wrote: Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote:
I have a fluke 3330b , have no output . I am not sure where to post for a
fluke but i figured someone could point me in the correct direction for a
group that can help me , or if someone here knows anything about going
about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
!DSPAM:5b25107313919973180691!
--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
|
Thanos for the info , the spelling was i mistake?
On Sat, Jun 16, 2018 at 9:57 AM, Artekmedia<manuals@...> wrote: Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to
Tektronix and HP groups) but worth a try. (Also spelling it FLUKE
instead of FLYKE helps :-))
-DC
manuals@...
toggle quoted message
Show quoted text
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote: I have a fluke 3330b , have no output . I am not sure where to post for a fluke but i figured someone could point me in the correct direction for a group that can help me , or if someone? here knows anything about going about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
|
Oliver
there is a Yahoo group "Fluke_DMM" . Not real active (compared to Tektronix and HP groups) but worth a try. (Also spelling it FLUKE instead of FLYKE helps :-))
-DC
manuals@...
toggle quoted message
Show quoted text
On 6/16/2018 9:31 AM, oliver johnson via Groups.Io wrote: I have a fluke 3330b , have no output . I am not sure where to post for a fluke but i figured someone could point me in the correct direction for a group that can help me , or if someone here knows anything about going about fixing this voltage standard .
--
Dave
Manuals@...
www.ArtekManuals.com
|
Michael A. Terrell
Timothy
ebrucehunter