This circuit generates high pulses from a sinusoidal input, using SCRs for this purpose. The pulses are positive and negative, as shown in the figure and the SCRs admit equivalents.
This small transmitter has an RF amplifier stage with coupling made from the central socket of the...
Found in a 1965 Motorola documentation this circuit drives magnetic-type fuel pumps found in cars...
This circuit simulates a multi-position switch using programming buttons. The circuit is from an...