Soldering chips easy electric soldering iron with special tip (see figure). For this presleyana copper rod of diameter 4-5 mm drill hole Ø 0,8 mm at the depth of 6 mm. Drilling is necessary, be careful, as copper is a viscous material and sloppy work is easy to break the drill bit. Perform soldering using rosin varnish. V. MOLOCHKOV, G. Novgorod
Recommend to read
THE SECRET PROFESSION OF “DIPLOMATS”
"Three potatoes, two beets, a kilo of carrots, two heads of cabbage"—a tongue Twister rattled off the seller standing in front of me a slender youth. I looked doubtfully at him, mentally...
MICROSCOPE FROM A WEBCAM
Talk about making microscope with computer connection with an increase in 300-500 times. This increase is enough for examining the cellular structure of plants, observing the behavior...
