Multi use circuit with FET (CB21410E)

Found in Motorola documentation from 1969, this circuit, compliant sensor and time network can function as a timer, moisture detector or photosensor.

S-meter (CB1405E )
The S-meter is signal strength meter, coupled to telecommunications receivers to indicate the...
Operational Connected Optocoupler Shield (CB16018E)
This circuit is suggested by Motorola, making it possible to use an optical coupler of type 4N26...
Dynamic Analyzer (CB12833E)
Dynamic analyzer is another name given to a signal follower or signal chaser. This circuit is from...