Balanced Modulator MC1556G (CB14559E)

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

7 to 15 V protected regulator (CB8679E)
Found in a 1964 Electronic Design, this circuit must use transistors according to the supplied...
Solar Robot (CB26076E)
This circuit powered by photovoltaic cells was found in the November 1998 issue of Electronics Now magazine....
Microphone Preamplifier (CB18991E)
This low impedance microphone preamp uses an operational amplifier with FET. The power supply must...