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PCB Eyelets
开云体育Can someone recommend a pc board eyelet and tools for pc board repair.? I have tried to contact intl-eyelets atmultiple times but gotten no response.? I thought their F-3093-C eyelet was what I was looking for.? I need to repair a pc board where a 4 pin .1" spacing header strip pulled the plating out of the hole.? So I need an eyelet that will accept a .025" square pin.? From researching this in the past it seemed the swaging tool was outrageously expensive ($200).? Since this is for a one time thing I can't justify that kind of money but would like to find some eyelets.? What other outfits are out there that sell eyelets?? Are there any cheap anvil tools for inserting the eyelets and seating them? Thank you. Jim Pruitt |
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You might try .? I purchased
items?on there
to make a switch.? Nice folks to deal with.
?
73,
Charlie, N0TT
?
On Sun, 10 Jun 2018 16:31:42 -0700 "Jim Pruitt" <jpruitt67@...> writes:
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My usual way to fix a board with a missing PTH is to either simply patch
from the pin to the next closest node on the bottom of the board **or**
scrape the solder mask from the top-side trace, run a piece of 30 AWG
bare wire-wrap wire through the hole, lay the wire on top of the top-side
trace and solder.? Yhen install the component through the hole and
solder the wire-wrap wire to the component lead.
I do have an expensive kit that replaces through-hole plating that I will use on the rare occasion that demands a cosmetically-perfect repair.? It is extremely reliable when done properly but the kit is darned expensive.? Most repairs don't require using this kit. dwayne At 05:31 PM 6/10/2018, Jim Pruitt wrote: Can someone recommend a pc board eyelet and tools for pc board repair.?? I have tried to contact intl-eyelets at --
Dwayne Reid?? <dwayner@...>
Trinity Electronics Systems Ltd??? Edmonton, AB,
CANADA
780-489-3199 voice?? 780-487-6397 fax??
888-489-3199 Toll Free
Custom Electronics Design and Manufacturing |
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开云体育hmmmmm....?? I have WW wire....? I have to play with that idea.I got WW wire to experiment with radio building. BIG mistake. Pretty much concluded that loose wires pick up hand capacitance and 60Hz hum while etched PCB cures all sorts of that noise. which sent me down the home brew pcbs path On 06/11/2018 02:21 PM, Dwayne Reid
wrote:
My usual way to fix a board with a missing PTH is to either simply patch from the pin to the next closest node on the bottom of the board **or** scrape the solder mask from the top-side trace, run a piece of 30 AWG bare wire-wrap wire through the hole, lay the wire on top of the top-side trace and solder.? Yhen install the component through the hole and solder the wire-wrap wire to the component lead. |
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Dwayne's advice is dead on. It works really well. The only problem I've ever had was the wire-wrap wire coming unsoldered at the top, and that was because there was another pad right next to the failed one which transferred heat up to the top. I re-did it with the wire-wrap wire wrapped between the two pads and all was well.?
I've also pulled a variation of this trick in the past when working with a part that has a flexible, but large lead (power cap) which wouldn't fit through the hole after the wire-wrap wire was in place.Take the component lead, and bend a little loop in it, which will lay flat against the top of the PCB, contacting the remaining top layer pad or trace before going through the hole. Insert remaining lead through hole, bend over so it contacts bottom layer pad / trace, solder top and bottom.? Obviously that won't work with a lead which isn't accessible from the top after component placement. Some components can be lifted up enough to provide access and have long enough leads to pull that trick, but many don't.? |
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开云体育I have the copperset/multicore system for repairs that have to be perfect.? Otherwise I use kynar wire wrap wire.
Mikeselectric stuff shows some pictures on his page about making PCBs down the bottom.
From: [email protected] <[email protected]> on behalf of Jim Pruitt <jpruitt67@...>
Sent: Monday, 11 June 2018 9:31 AM To: [email protected] Subject: [homebrewpcbs] PCB Eyelets ?
Can someone recommend a pc board eyelet and tools for pc board repair.? I have tried to contact intl-eyelets at
multiple times but gotten no response.? I thought their F-3093-C eyelet was what I was looking for.? I need to repair a pc board where a 4 pin .1" spacing header strip pulled the plating out of the hole.? So I need an eyelet that will accept a .025" square pin.? From researching this in the past it seemed the swaging tool was outrageously expensive ($200).? Since this is for a one time thing I can't justify that kind of money but would like to find some eyelets.? What other outfits are out there that sell eyelets?? Are there any cheap anvil tools for inserting the eyelets and seating them? Thank you. Jim Pruitt |
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