Ads
related to: soldering iron 220v 60w led price
Search results
Results from the WOW.Com Content Network
This led to the development of soldering irons that had a small copper tip attached to an inexpensive cast-iron block. [4] Some irons even had removable and replaceable copper tips. [5] The first electric soldering iron had a very lightweight platinum tip heated by electric current flowing through the tip itself. [6]
A 1948 advertisement for a Weller soldering gun. Pistol-grip electrically-heated soldering tools had been used since the 1920s. In 1941 Carl E. Weller invented and later obtained U.S. patent 2,405,866 [1] for a transformer-based soldering tool which heated and cooled rapidly, [2] essentially as described in this article.
The fuse elements may be shaped to increase heating effect. In large fuses, current may be divided between multiple strips of metal. A dual-element fuse may contain a metal strip that melts instantly on a short circuit, and also contain a low-melting solder joint that responds to long-term overload of low values compared to a short circuit.
Ads
related to: soldering iron 220v 60w led price