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.
This source was found in Philips' 60s documentation. The transistors are from the era and the...
This 1987 circuit uses a common ignition coil to generate high voltage to power a fluorescent lamp that...
Found in a 1958’s publication, this receiver uses components that are nbot easy to find in our...