Negative Edge Differential Differential Amplifier LM3900 (CB4039E)

This circuit was found in the 1990 Motorola Linear Databook and can use almost any operational amplifier. The power supply must be symmetrical.

Successive Tone Decoder PLL (CB3958E)
This circuit with the known PLL 567 can be found in other versions in this section and in this...
Receiver for Optical Audio Lin (CB1365E)
This is the receiver for the CB1364E transmitter. Other receivers can be found in this section of...
Solar Cell Switched Regulator (CB1187E)
This circuit was found in a Popular Electronics from April 1993. It is a voltage regulator circuit...