Bidirectional buffer (CB9317E)

This circuit was obtained in a 90s Electronic Design. The circuit uses components from that time.

Electronic Variable Capacitor (CB21495E)
This circuit can operate with signals up to 60 MHz using the indicated operational. We found it in...
Alternating Voltage Regulator (CB1581E )
National Semiconductor suggests the figure circuit for stabilizing the peak value of an...
0 to 20 V x 1 A Power Supply (CB1186E)
We found this circuit in a 1980 documentation. With basic changes, including transistors that were...