This circuit is a four-quadrant multiplier using an LM3900. The circuit was found in the July 1988 Radio Electronics magazine.
May 2017 - The new 36V TLVx171 Series of General Purpose Operational Amplifiers from Texas...
This circuit was found in an American 1980s documentation. The transistorized step is the...
Using the 4001 integrated circuit, this latching relay can employ any general-purpose transistor. The...