E)
This soft start dimmer was found in a Motorola documentation from 1968. However, it can be implemented with modern equivalent components like the 2N2646 for the Unijunction.
To increase the control capacity of the CA3140, an amplifier circuit can be used, as shown in the...
The figure shows a simple circuit to power LEDs from the AC Power Line. The resistor can be a wire...
This circuit was found in documentation from the 1980s. Transistors are general-purpose types like...