This interesting circuit for analog TV selects the first line of a frame. The circuit was found in a 1967 Electronic Design. A modern equivalent transistor can be tried.
This circuit was found in a 1966 EEE. Transistors support modern equivalents and the waveforms are...
This circuit is from an 80's component manual. The components are from the time, but the circuit...
This flasher with a small incandescent lamp was obtained in a documentation from the 80's. The...