Stereo FM Transmitter (CB8459E)

This circuit was found in a 90s Radio Electronics. The FM encoder or multiplexer is an uncommon component today.

Shield for Digital Transmission (CB20166E)
This isolated shield is from an old documentation, making use of an operational one of the time. It...
9V FET Transmitter (CB19443E)
We found this transmitter circuit in a 1990s spy book. The coil data is provided along with the...
Simple Regulator Using Common Diodes (CB20292E)
In this circuit we have the way to use common diodes to obtain low regulated voltages in a single...