Electronics Forum | Thu Sep 14 14:16:23 EDT 2000 | Danny Carr
Francois, Phenolic resin or "Bakelite," was a non-flammable, early plastic that was popular in the 1920s, '30s and '40s.
Electronics Forum | Wed Jan 12 15:29:02 EST 2000 | JAX
Jim, This is probably the most popular subject on the forum. It shows up every few weeks. You should have a blast checking through the archives. Have Fun.
Electronics Forum | Sat Feb 19 04:16:46 EST 2000 | Michael H
Hi What would be considered a reasonable benchmark when placing finepitch devices say 24, 15mill pitch devices avg 2000 joints and a total pad count of 6918. I would be gratefull for any advice on this matter, also if anyone can recommend any real
Electronics Forum | Wed Jan 12 09:30:33 EST 2000 | Jim Schultz
I need your help. I have been battleing tombstoned 0603 resistors for many months now. I have been working on the profile, the placement accuracy of the chipshooter, and the print accuracy. I am writing in the hopes that someone out there has some
Electronics Forum | Thu Jan 13 11:52:17 EST 2000 | Christopher Lampron
Jim, Yes this does keep on coming up in the forum as JAX states. There is a pluther of information in the archives. I have had some problems with 0603's in the past. If it is possible, try using a 2% silver SN62 solder paste. This helped me in many s
Electronics Forum | Sat Jan 22 14:55:28 EST 2000 | Shravan Jumani
Jim, I am working with O2O1's, and I have found that a combination of No clean flux with Air Reflow, reduces tombstoning, wheras, a combination of No clean flux and Air increases it. Have you or anyone else experienced this? If you have any answers
Electronics Forum | Wed Jun 29 03:37:53 EDT 2005 | lupo
Hi, I think that the time depends on the type of stainless steel, temperature and solder alloy. For example, one of our machines is delivered with 316 stainless pot and alloy SnNi. It worked six months (120days*16hours = 1920hours) and aft
Electronics Forum | Mon Oct 01 15:44:13 EDT 2007 | hussman
A simple answer is never. Tin lead will oxidize when exposed to oxygen, but it will not rust away like normal steel. I have old equipment from the 1920�s and 1930� that have solder joints as robust as the day they were made. Maybe not as shinny, b
Electronics Forum | Wed Mar 10 14:05:29 EST 2004 | dougt
The 400E has a computer on the bottom of the cabinet with a a Serial/Keyboard Card installed in it. J1 pins 19/20 are the cutters transmit/receive lines on this card, they go through a transition brd and on to the Cutter/Processor brd on the side do
Electronics Forum | Tue Dec 18 17:07:50 EST 2007 | ajd400
Hello there, Please forgive the wildly-off-topic nature of this post. For a video documentary about radios in the 1920's, I'm looking for stock footage of modern PC board manufacture. (I'm a software engineer but doing this effort as a hobby). Th
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