Balanced Modulator MC1556G (CB14559E)

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

AND Gate LM3900 (CB15638E)
To obtain an AND gate we have the configuration shown in the figure. With the values indicated for the...
Multivibrator NCX2220 (CB20387B)
This circuit has been removed from the component's datasheet. In it we have a monostable or...
Display drive 4029 (CB7555E)
Here we have the way to activate two common cathode displays with 4026 integrated circuits. The...