Electronics Forum | Tue Apr 04 02:51:41 EDT 2006 | arnold
Hi everyone, can you tel me on how to compute (mathematically)the inductance of transformer having having gap core. what i know is inductance for ungapped core L = Al value of core x square the no. of turns how about for gapped core
Electronics Forum | Fri Apr 07 07:56:12 EDT 2006 | Chunks
Hi AJ, I have never used the Pulsar, but have seen it. I worry about it clogging all the time. Also being "hand held" over a hot pot wories me too. Look for something automated. My $0.02 and only an opinion.
Electronics Forum | Mon Apr 24 08:18:20 EDT 2006 | dirk29
You can do that if you have enough feeder space....but i doubt it unless you have a lot of machines in line.
Electronics Forum | Thu Apr 13 16:21:29 EDT 2006 | jdengler
Make sure the pulleys on the motor and lead screw have not come loose. Look for damaged encoder wires in the cable way. If all of this mechanical stuff checks out then you probably have a bad encoder. Jerry
Electronics Forum | Tue May 02 14:27:43 EDT 2006 | bhall
In the past we have used immersion tin as an alternative for HASL. Our biggest problem was shelf life. The tin oxidized very rapidly. We switched to immersion gold and have had great success.
Electronics Forum | Thu Apr 20 17:51:52 EDT 2006 | Geo
When we have warpage issues we use Titanium Panel Stiffeners even though the stiffeners are mainly used for Wave we find little issue for reflow. Mind you the boards have to be large enough.
Electronics Forum | Fri Apr 28 12:27:55 EDT 2006 | jdumont
Not to turn this into a used equipment war but I have a Heller 1088 4 zone i could sell for $4K in a month or so. We just got in a new BTU Pyramax98 and will soon have no use for the Heller....
Electronics Forum | Thu Apr 27 04:21:15 EDT 2006 | slaine
you can either use an alloy that has a higher copper content to reduce dissolution or the better option is to have a Nickel plating barrier. both have there problems. Bu remember the dissolution of copper by tin carries on at a slower rate a ambiant
Electronics Forum | Mon May 01 14:51:11 EDT 2006 | slthomas
Actually you have a point. Why don't you start posting in Mandarin and we'll all have a good laugh.
Electronics Forum | Wed May 03 12:43:55 EDT 2006 | patrickbruneel
Chunks, You should have been in marketing But as a flux manufacturer I have to make a small correction Solder is the muscle flux the nerve
