To remove or hang on the door hinges alone — for many, this becomes an intractable problem. Make the device shown in the figure, and the case will move forward.
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THE INDICATOR OF BURNING OF A FUSE
That fuse in the radio, will alert you to the simple automatic device, scheme of which was published the magazine "Radio Fernsehen Elektronik" (Germany). While a fuse F1 (see figure),...
VARIABLE RESISTORS WITH TAPS
often need Amateurs with a passion for designing low-frequency amplifiers. But in the sale they are not always. The solution? To make a simple potentiometer with taps. For this it is...
