All, Most know that the art of soldering should have some set standards of pass or fail. What I use, and try to adhere to, is the government standards, in partucular NASA standards. Below is some links to available documants provided by NASA. One part though, you must register to gain access. I doubt this will be a problem to UK residents, other countries, I'm not sure. All you have to do is give them your full name, password you want, e-mail address, and the buisness your associated with. You may just be able to put "self" under the business portion. If not, feel free to use my business name of "Amateur Transformer & Supply". This is only for members of this list so please do not let anyone else use the name. This is very good reading, and also has good pictorials of bad and good solder joints for every concievable joint there is. It also shows the proper lead terminations for different terminals. Links; These don't require registration. NASA STD 8739.3; http://www.hq.nasa.gov/office/codeq/solder.htm SURFACE MOUNT TECHNOLOGY (SMT) LEADED PACKAGES/PARTS-ROUND OR FLATTENED "COINED" LEADS; http://workmanship.nasa.gov/lib/insp/2%20books/links/sections/711%20Leaded%20Packages%5EParts%20Round%20or%20Flattened%20(Coined)%20Leads.html THROUGH-HOLE SOLDERING TERMINALS; http://workmanship.nasa.gov/lib/insp/2%20books/links/sections/613%20Terminals.html Workmanship Standard for Staking and Conformal Coating of Printed Wiring Boards and Electronic Assemblies.; http://workmanship.nasa.gov/ws_8739_1.jsp Surface Mount Technology; http://workmanship.nasa.gov/ws_8739_2.jsp Soldered Electrical Connections; http://workmanship.nasa.gov/ws_8739_3.jsp Crimping, Interconnecting Cables, Harnesses, and Wiring; http://workmanship.nasa.gov/ws_8739_4.jsp -------------------------------------------------------------- Registered public access (use public access link to register); After registering and receiving your login info by e-mail, you will go to a search engine page. Type in solder or soldering under "Title Keywords" and it will give a bunch of different ones. When you find the one you want, click on the document number, and you will go to a page where you request the document be e-mailed to you by the librarian. http://standards.nasa.gov/ Hope this can be of use to some on the list. Best, Will -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm