In the practice of Amateur radio is the most time consuming and delicate work — installation of components on the Board. I propose to do to upgrade the soldering iron. Instead of the regular sting set thin tube, for example brass shank from the barrel for charging gas lighters. (Of course, removing it from the spray can only be fully bleed the gas.) Under his thread cooking in the tip of the iron the Jack — that’s the whole trouble. Hollow sting is coming to the speakers from the Board leg details — it turns smooth and durable cone soldering. V. FEDULOV, Chop, Transcarpathian region.
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UNDER ANY GROWTH
To pull the oars will be much easier if you install in a boat footrest. It consists of two shaped holders and crossbar. As the crossbar, you can use the cut water pipe.
CONTACTLESS CAPACITIVE RELAY
The basis of a capacitive relay — a low-power generator of high frequency such as local oscillator of a radio receiver. To the circuit L1C4 (see diagram) of the connected metal plate...
