Electronics Forum | Fri Apr 23 15:10:45 EDT 1999 | Chrys Shea
| We are an assembly house engaged in large volume manufacturing of Computer motherboards and others. We are in the process of selection of a new wave soldering machine. Can somebody help me inform what are the different parameters which must be ens
Electronics Forum | Mon Apr 12 19:28:26 EDT 1999 | Tom B
Netters, When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? 1. Kester 293 no clean 2. 2.1 C/s for 30s to 150 C 3. .5 - .7 C/s for 60s to 185 C 4. 1.5 C/s u
Electronics Forum | Tue Apr 13 18:11:00 EDT 1999 | Jimmy Strain
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Electronics Forum | Mon Apr 19 11:21:03 EDT 1999 | Travson
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Electronics Forum | Mon Apr 19 20:49:13 EDT 1999 | Dave F
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Electronics Forum | Fri Apr 02 02:01:24 EST 1999 | P.L. Sorenson - Technical Consultant
| | | Has anyone heard of a problem with catastrophic failure of | | | large value (200uF) solid tantulum capacitors that have been | | | exsposed to high humdity. | | | | | I suppose that with water moisture seep in the capacitor, the risk is ver
Electronics Forum | Fri Feb 05 12:50:06 EST 1999 | Steve Gregory
| Love the picture. | | We are considering the PRC 1500. It combines a thermoflo unit with a MBT 250A which we currently use. Does anyone know the difference between the TF200 and the TF700? This is the first I have seen the TF700 mentioned. | |
Electronics Forum | Tue Jan 12 00:16:15 EST 1999 | Jason Nipper
| | I need leads on equipment vendors for selective soldering systems. I have information about ERSA and Seho already. I want to contact Air Vac in particular, but I can't find thier phone number. Thanks for the help | | | Jim, | | Below are a
Electronics Forum | Mon Jan 04 11:59:41 EST 1999 | Steve Evers
| Give me your opinions and experiences of SelectX, selective debridging system in the Vitronics Soltec wave soldering machines. | Opinion and (food for thought)?: First let me say that I am not familiar with SelectX. In the past, manufacturing e
Electronics Forum | Tue Nov 17 08:36:28 EST 1998 | Chrys
| For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave solder a
