This TTL circuit consists of a frequency divider or converter that has values selected by a switch. The circuit is from Radio Electronics from December 1980 and must be powered by a voltage of 5 V.
This circuit shows how a monostable can be obtained from an RS flip-flop using a unijunction...
This circuit was found in an application note of the LTC1164 from Linear Technology of the 1990s....
Using a general-purpose transistor this AC amplifier was found in the November 1993 issue of...