Suitcases on wheels is widespread. But what if, going on a long journey, you take, except for the small suitcase, and even other things! Take a handle, a hook of steel wire— and all the load will ride on the same wheels.
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BATTERY, YOU TO REFRESH?
While still in school, I restored the spent battery pocket receiver rather primitive, but effective way. With pliers gently removed the graphite rod and filled the battery with water....
THE LIGHT IN THE SWITCH
Not to look for the switch in the dark, to make it a backlit "Neonka" from the starter of the fluorescent lights and the resistor 100 ohms, connected in series— that's the whole scheme....
