How to assemble an intercom up to 100 meters from available parts.
Project archive https://yadi.sk/d/mjuSIECl3NpabE
PRODUCTS FOR AMATEUR RADIO...
Laboratory power supply 0-30 volts 3 amperes http://ali.pub/1waz59
Universal radio components tester http://ali.pub/1waze0
STEP-DOWN CONVERTER http://ali.pub/1qhto2
Collet chuck from 0.3-3.5 mm to 2.3 mm shaft http://ali.pub/1j0mwi
Solder paste mechanic XG 50 http://ali.pub/1igy54
Step-up DC-DC converter XL6009 http://ali.pub/1i3sz0
Electronic Watch kit set. http://ali.pub/1hmnl1
Drills 0.3 mm to 1.2 mm http://ali.pub/1hmmhy
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