Everyone had to solder, know how much trouble is due to the fact to hold the workpiece in position. Much easier to work with if you make a simple vise, consisting of several pegs mounted on a wooden bar.
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This is one of the most heavy and high-speed models. It belongs to the class "A-3" according to the Rules NAVIGA. The model consists of the following main components: hull, floats, motor...
THE SIMPLEST SENSOR
In today's electronic equipment is widely used touch control. Option sensor available for beginners repetition hams, offers Czech magazine "Amaterske Radio". If you touch the plate,...
