When the pencil lines of the drawing or drawing close to each other — the usual eraser, it is difficult to remove the erroneous one so as not to damage the adjacent correct. But this operation will be virtually the exact jewelry and if a thin slice of gum to hold in the “beak” of the spring: simple and convenient.Recommend to read
TREAT THE PEDAL…
Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from...
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Most radio Amateurs, unfortunately, do not publish their devices.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...
