This high current switching stage was found in a 1967 EEE. The power transistor is from that time. The peak current can reach 30 A.
This is a simple converter or source configuration using an ordinary incandescent lamp as a...
This adjustable source was found in a 1979 documentation, but all components are still common...
The sensor of this circuit is a large surface diode. We believe that a small solar cell can also...