Electronics Forum | Fri Aug 18 13:48:58 EDT 2006 | slthomas
blasted double post
Electronics Forum | Fri Aug 18 13:52:08 EDT 2006 | slthomas
Not sneakin' anything past you, are we Chunks? :P
Electronics Forum | Fri Aug 18 15:03:16 EDT 2006 | Chunks
Does that make me a "Master" of post reading?
Electronics Forum | Thu Jun 07 05:11:42 EDT 2012 | cp38260
Hi, I have pcbs (Duroid/RT 5880) with raw copper, soldered in vapour-phase chamber at 230 degrees Celsius. During soldering, copper gets tarnished. Cleaning with Vigon A250 removes the tarnished layer. Indeed, in the VigonA250 techn. datasheet it is
Electronics Forum | Thu Aug 17 15:09:24 EDT 2006 | slthomas
It sounds more expensive just at face value than better LEDs, and potentially MUCH more exensive due to failures if there is any kind of stress on that weakened connection.
Electronics Forum | Thu Aug 17 15:26:49 EDT 2006 | Chunks
Well, you won't win any IPC awards for doing this. Another idea is to use a center punch to create the dimple you need. It wouls be quicker and you won't destroy the barrel like you will with a drill. Don't ask me how I know.
Electronics Forum | Thu Aug 17 17:51:47 EDT 2006 | davef
We use plastic standoffs that fit between the LED and the board. Live well, live long. For more than you wanted to know about standoffs: http://www.reedlink.com/ProductInfo~Productid~158255~ProductName~LED-Standoffs.html
Electronics Forum | Fri Aug 18 10:55:31 EDT 2006 | Chunks
Steve, You almost got yout Man Card revoked for stating: "determining the risks associated with simultaneously applying compressive and rotational forces to the end of the barrel". Luckily you bounced back with "chewing up the copper". Just pokin
Electronics Forum | Fri Aug 14 08:30:44 EDT 1998 | Pat Copeland
Where can I find a spec to put on my fab drawing, to call out the cleanliness of the board, before I recieve it. These boards will require a tight spec after they are assembled, so I want to know that they are clean when I get them. Any suggestions.
Electronics Forum | Fri Aug 14 09:37:36 EDT 1998 | Earl Moon
| Where can I find a spec to put on my fab drawing, to call out the cleanliness of the board, before I recieve it. These boards will require a tight spec after they are assembled, so I want to know that they are clean when I get them. Any suggestions
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