VHF and UHF Preamplifier (CB8401E)

Found in a 90s Popular Electronics, this circuit uses a MAR-X to amplify signals up to 2 GHz. The circuit is quite critical.

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AM Modulator (CB5362E)
This circuit is from an American 80's documentation. The integrated circuit is of the time and is no...
Alarm Sensor (CB15000E)
The circuit shown consists of a NO and NC sensor system for alarms. The output must be connected to a...
Operational LC Oscillator (CB14838E)
The maximum frequency of this circuit depends on the operational, reaching a few hundred...