Broadband Balanced Mixer MC1556G (CB14563E)

We found this circuit in Motorola's Linear Databook in 1990. The integrated circuit used is no longer common today.

Set and reset flip flop (CB24432E)
This circuit is from a 90's documentation. The circuit is simple, as it uses only two transistors, and the...
Seismic and vibration detector (CB25727E)
The circuit illustrated in the figure can be used to detect earthquakes or vibrations of...
Pulse Generator (CB18236E)
This TTL generator that can function as a control shield or external clock for microcontrollers was found in...