Found in the November 1999 issue of Electronics Now magazine, this circuit generates a 6.67 Hz signal from a 4.1952 Hz crystal.
This 12V battery charging circuit automatically shuts off at the end of the charge. The disconnect...
We do not know exactly what sound a flying saucer makes, or if it makes a sound! But this is not...
This simple 1 transistor circuit was found in an American documentation from the 60's. The...