This 1980s documentation circuit uses a 741 in a different high-speed comparator configuration. The feed must be symmetrical. The diode is general-purpose.
This version of the Pierce oscillator with the 2N3904 was found in the January 1994 issue of...
This circuit sources a Constant current to a load. The current is determined by R2. In the...
This is a very simple atomic radiation detector circuit using a Geiger-Muller tube. The circuit was...