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.

Field Strength Meter (CB14899E)
This circuit detects signals in a wide range of frequencies, indicating their strength in an...
Two Tone Alarm (CB18462E)
This traditional two-tone alarm configuration with the 4011 integrated circuit was found in a 1998...
Automotive Voltage Regulator (CB24642E)
This circuit was found in the June 1980 issue of Radio Electronics magazine. The circuit uses an...