If you want ordinary “card” loop was samarastroydetal like spring-loaded, easy to upgrade. For this of eyes loop is extracted axial rod, and the reverse installation is put one or two springs so that their ends rested on the loop. Eyes for necessary for this file.
Recommend to read
“COMBINE” SOLDERING IRON
A good soldering iron stand is necessary for the radio Amateurs and all those who deal with soldering. Description of just such a fixture and is offered to attention of readers. The...
SU-17: FIGHTER AND BOMBER
Projects and experienced first instances of jet aircraft with variable geometry wings appeared during the Second world war: in our country the project of this aircraft was developed V....