This circuit is from the Motorola Linear Databook of 1990 and can be implemented with other operational amplifiers. The power supply must be symmetrical.
The drive levels of this shield are opposite to the previous one. The photo-transistor can be of...
This is an RF amplification step for small signals using the common base configuration. The...
The integrated circuit used in this 80's mixer is the LM301A. However the circuit can be used to...