A simple device for carrying a wide sheet materials are easy to make yourself, having at hand two, tee, four corners and three or four water pipe section.
Recommend to read
EXPANDER FROM BOTTLES
If you pick up a-liter plastic bottles of diameter to one (cut) densely entered second, you get the original expander, exerciser for the muscles of the hands. Adding to the bottom of any...
Electronic ignition for “Voskhod”
In the second issue of "M-K" for 1976, I read an article "Electronics on a Motorcycle" about an electronic ignition system. It has a DC to AC voltage converter. This circuit requires a...
