Many hams are faced with the problem: the drilling micro-holes in the manufacture of printed circuit boards! Drill a small diameter even in the cities is rare, and they often poma. My friend get out of this situation as follows: use a sewing needle with broken eye. You can take a new, stachiw ear half. The method is simple, reliable, and available to everyone. V. BEZRUK, O. BEDNARSKI. Kirovograd
Recommend to read
SPEED — up TO 120 km/h
This model can easily produce young technician familiar with the basics of automodelisme and able to work on machine tools. The construction should start with the manufacture of the pan,...
LOOP — GLIDER
Immediately after his return from Moscow to Koktebel in the fall of 1929 Sergei asked me to do a new airframe for aerobatics, — says the aircraft designer S. N. The lyushin.— There were...
