Electronics Forum: john w kratz (Page 2 of 22)

Wave Solder Flux Weight

Electronics Forum | Tue Jan 18 08:28:58 EST 2000 | JohnW

Hello folk's, long time no chat.... I'm looking for some help, I'm trying to find a formula for calculating flux weight on a VOC flux (Multicores NR3S-06)does anyone have any idea's...Dave???? JohnW

Re: patchproblem lifted lead

Electronics Forum | Tue Nov 30 18:33:05 EST 1999 | Brian W.

I have used Loctite, RTV3145, or Tak-Pak to secure the wire. As John said, the wire is usually secured to the board near the lifted lead, and usually at 1/4 inch intervals along the way. Brian W.

Re: Solder Mask IPC Standard

Electronics Forum | Thu Oct 14 08:05:17 EDT 1999 | JohnW

Dream, Sound's to me like your PCB supplier has process problems, probably outgassing or such from trapped moisture / contaminant's. I thoink it's time you called in your vendor for a chat. JohnW

Profiling board

Electronics Forum | Fri May 24 11:24:11 EDT 2002 | yngwie

Pete C, Cyber wolf and JohnW...cheers man...excellent input. But I 'm eager to try the method mentioned by Cyber wolf..sounds very convincing. Let see what is the results later. thanx again and have a nice weekend. /yngwie

Programming Mydata w/Excel macro

Electronics Forum | Fri Mar 11 12:23:28 EST 2011 | upguy

Ed: Our Mydata TP9-UFPs are down when we are using them to write programs. That Excel macro from Mydata would be a godsend. We would be very interested in getting and using the macro. Please contact me. Thanks. John

heller 1800w help

Electronics Forum | Fri May 06 06:27:24 EDT 2011 | james1903

John, If you do end up in need of a new 16cls controller, we currently have these both new old stock and salvaged/tested. Just mail me if the requirement comes up. BR James

Resistor Help Needed

Electronics Forum | Thu May 13 19:41:17 EDT 2004 | johnww

Hi Everyone, I want to use LEDs in an enclosed box for edge lighting etched glass. There are 15 LEDs in a box and they are set up in 5 series of 3 LEDs. The LEDs are 3.5V 20Ma 8000mcd. I've worked out that I need an 82 ohm resistor for each series

Re: How are your solder balls @ wave solder ?

Electronics Forum | Mon Oct 11 13:08:29 EDT 1999 | Dave F

| Folk's, | | I'm just tying up some loose end's on my Master's Thesis on solderballing @ wave soldering and the effect the topography of the mask / PCB has on it. | I was wanting to do a straw poll on you guy's as to the type of resist's you are us

Re: PTH Cut Form Equipment

Electronics Forum | Thu Jul 15 14:40:43 EDT 1999 | JohnW

| | snip | | | Dave, believe it or not it's the only thing these loupot's do..crop n form ! scary but then they are built like the preverbial brick shit house..don't know if you guy's are familiar with the phrase...but you'll only ever need to buy

Re: Dross Removal

Electronics Forum | Wed Nov 08 03:48:10 EST 2000 | JohnW

If your feeling really flush with ash you could contact your wave machine vendor and buy some from them. But I have to admit I do prefer Dave's idea...much cheaper, you'll get it in some kinda timescale rather than the 4 week's your machine vendor wi


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