Electronics Forum | Thu Mar 29 14:43:22 EDT 2007 | jmelson
For a microscope, you want one with the greatest working distance and depth of field you can get. You don't want a lot of magnification, so something like 0.7 - 20 X is good. If you are buying new, have salesmen bring them by and actually try them
Electronics Forum | Mon Jan 14 17:15:24 EST 2008 | jmelson
$200 is iffy, even for a used, reconditioned unit. I got an aged Olympus for about that some years ago, but had to make my own stand. There is a Chinese-made stereo microscope (no zoom) that is absolutely worthless for inspection, because the "thro
Electronics Forum | Wed Jan 30 14:11:15 EST 2008 | slthomas
We dodged it for a while but it was inevitable. Here's the question. What do I REALLY need, and does anyone even agree on it? OK, that's *two* questions. The first board we're likely to do has three parts that will need special consideration. One
Electronics Forum | Sat Jul 16 17:29:50 EDT 2016 | aemery
Yes, you need to run the 'offsets' calibration to correct the offset issue. If the machine is in good working order and all of the other alignments and cal's are completed then you are good shape to go to run this cal. If not, you could waste a few
Electronics Forum | Wed Aug 15 16:04:23 EDT 2001 | davef
First, responding to your question � Several things on copper dissolution in solder are: * A 50um copper wire will dissolve in 60Sn / 40Pb solder at: - 200�C solder in 55 seconds; - 250�C solder in 20 seconds; - 300�C solder in 5 seconds; - 350�C so
Electronics Forum | Sun Mar 07 13:10:15 EST 1999 | Sam Sangani
| Has anyone used the mechanical stencil foil tensioning system from certain company that eliminates using stencil frames and epoxy & mesh? Any comments on whether it's worth looking into? We go through product revisions like we go through clean so
Electronics Forum | Mon Apr 13 19:43:32 EDT 1998 | Steve Gregory
| Could someone point me in the direction of or have any info on a basic no frills Ultrasonic cleaner capable of cleaning 20"x20" stencils? | Thanks, | Jack LaRue | jlarue@mail.nortechsys.com Hi Jack! Well, I'm sure you've heard of Smart Sonic..
Electronics Forum | Mon Apr 13 19:40:19 EDT 1998 | Steve Gregory
| Could someone point me in the direction of or have any info on a basic no frills Ultrasonic cleaner capable of cleaning 20"x20" stencils? | Thanks, | Jack LaRue | jlarue@mail.nortechsys.com Hi Jack! Well, I'm sure you've heard of Smart Sonic..
Electronics Forum | Tue Aug 24 07:09:16 EDT 1999 | Brian
| | This is out of the normal scope of this site but� | | | | I am in search of a Digital Camera for use with documentation instructions. What would be the Minimum Resolution that I should require? I will need details of assemblies such as Compone
Electronics Forum | Fri Apr 29 14:16:16 EDT 2011 | ppcbs
Below is the long explanation. This defect is most commonly found with BGA components, but can arrise with all components. I see it happening more now with lead free boards that are being assembled with a no clean flux. Best short term remedy is t
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