Here’s a simple device, which you can use per minute to make any small spiral spring. A u-shaped bracket with the rows of holes and some steel tap wrenches of different diameters — all that is required. Insert in the corresponding hole of the bracket selection tool, thread through the top hole and the slot of the nose of the crank end of the wire And twist the handle.
Recommend to read
TIMER WITH KNOW-HOW
Most radio Amateurs, unfortunately, do not publish their devices. Although sometimes their design is novelty, which still has not invented and did not. In the magazine "Radio" in may...
TRIO FOR DISH
In the modern interior of apartments, cafes, offices are often used as decorations painted decorative plates. Often the reverse side of them there is a hole or eyelet for hanging. If...
