[Diy_efi] DIY-WB construction & testing... help

[Bevan Weiss]

The other thing which I have often used is a hard tooth brush.  Works well
when dealing with tight spacings between larger parts (like closely spcaed
through hole resistors).

----- Original Message -----
From: "efi_student" <efi.student at sbcglobal.net>
To: <diy_efi at diy-efi.org>
Sent: Saturday, July 20, 2002 7:11 PM
Subject: RE: [Diy_efi] DIY-WB construction & testing... help


> Don't waste a lot of money on specialized cleaners that are either
> marginal or just plain expensive.  If you are using conventional rosin
> cored solder, isopropyl alcohol or denatured ethanol work just fine.  We
> used to buy denatured in 5 gallon cans when I worked on an electronics
> bench every day.  Splash and scrub a little with a stiff brush (we used
> to get plumber's flux brushes and clip them off at about 6mm from the
> root).  Joints should be brilliantly silver and shiny, if not, they
> could be "cold" joints and highly resistive.  Cold joints should be
> reheated, and if still appearing dull after reheat, should be refluxed
> and reheated.  I have seen MANY failures from cold solder joints.
>
> Lance
>
>
>
> -----Original Message-----
> From: diy_efi-admin at diy-efi.org [mailto:diy_efi-admin at diy-efi.org] On
> Behalf Of Bruce
> Sent: Wednesday, July 19, 1995 5:28 PM
> To: diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] DIY-WB construction & testing... help
>
>
>
> ----- Original Message -----
> From: "Andrew Brownsword" <asword at telus.net>
> >Can flux cause shorts?
>
> Once upon I time I used fluxs.  Now only on heavy guage wiring harness
> type work.  They can etch the board, They can cause high resistance
> *traces* These resistances can vary with temp., and yes I was using non
> acid versions. Some electrical supply sources sell areosol neutrilizers,
> and cleaners. I've had consistant good luck just using regular flux type
> solders, Kester being the only one I use now.  The archives have some
> other opinions about solders Bruce
>
>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org http://www.diy-efi.org/mailman/listinfo/diy_efi
>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
>

_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi