Gas stove is a source of danger in the apartment and demands to the Saba special attention. Offered under the handles of the valves of the burners to put red stripes visible only in the “open” position. Now only one bigpage glance at the stove to see if the gas is blocked.
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WITH A SINGLE BLOW
A simple "opener" for metal cans with lacquer or varnish can be done in just a minute from block of wood and two nails.
SIMPLE FREQUENCY COUNTER
A diagram of the frequency to control the frequencies in a relatively narrow range offers the magazine "Radio Fernsehen Elektronik" of the GDR. It contains all 7 elements. The device...
