Electronics Forum: john and thorup (Page 5 of 29)

Re: screen printable masking material

Electronics Forum | Tue Dec 14 11:17:45 EST 1999 | John Thorup

Hello Mike You'll have to be a bit more specific. Do you mean permanent solder mask like the normally green material or a temporary mask like the peelable/washable material? John Thorup

Re: nozzle - terminology

Electronics Forum | Fri Dec 10 16:32:55 EST 1999 | John Thorup

well... it depends on what you are placing. Many odd-form placement machines, like Chad or Jot, use some sort of mechanical gripper as a "nozzle" without vacuum. John Thorup

Re: PCBA - Deionized water rinsing

Electronics Forum | Mon Dec 06 11:49:52 EST 1999 | John Thorup

Ron - no clean = no water, de-ionized or otherwise. What you should determine is if no-clean is suitable for your end product (it likely is) Certain high frequency, high reliability, low level, environmental, or other conditions might suggest a wash

Re: Chillers, Coolers

Electronics Forum | Tue Nov 30 16:47:16 EST 1999 | John Thorup

Hello Jay I don't know what your requirements are but McMaster-Carr has a selection in their catalog John Thorup

Re: patchproblem lifted lead

Electronics Forum | Tue Nov 30 13:20:07 EST 1999 | John Thorup

Hello Wolfgang Try looking in the process guides section of Circuit Technologies web site. Their recomendation is to bond the jumper wire to the board within 6mm of the lead with hot melt glue, cyanoacrylic glue or adhesive dots. John Thorup

Re: Squeegee blades

Electronics Forum | Wed Nov 24 10:43:39 EST 1999 | John Thorup

The TA blades work very well. I understand that they are now available with the permalex coating over the whole blade rather than just the edge for no cost up. This is advertised to reduce sticking. As Boca says, try the epoxy vendor. Maybe the p

Re: Squeegee blades

Electronics Forum | Thu Dec 02 11:54:50 EST 1999 | John Thorup

I'll have to second Boca. I have used the TA blades exclusively for three years and have never seen the coating come off. I think you'll be able to make a case for your bean counters. John Thorup

Re: patches

Electronics Forum | Fri Nov 12 16:33:30 EST 1999 | John Thorup

Gordon and Bob I had to go back and read the previous postings again after reading yours and I must say that I still don't understand...please enlighten us John Thorup

Re: Flux tanks

Electronics Forum | Fri Nov 05 13:15:45 EST 1999 | John Thorup

Hi Rich It couldn't be simpler. www.binks.com Their main products are for paint and chemical spraying so it is likely that you will find a stock item that fulfills your need. good luck John Thorup

Re: in need of smt book

Electronics Forum | Thu Oct 21 13:53:40 EDT 1999 | John Thorup

Jacob The most comprehensive book on soldering I have seen is Soldering In Electronics by R.J. Klein Wassing and available from Electrochemical Publications in the UK. www.elchempub.com Another is Solders and Soldering by Howard Manko from McGraw-Hil


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