Found in a 90s Electronic Design, this circuit can be used as a shield in current projects. The circuit provides three levels of signals for triggering loads.
This vox was found in Hughes documentation from 1968. The circuit uses components from the era. A...
The circuit in the figure is very interesting because it simulates an SCR triggered by light. When...
In this transmitter for telephone conversations, found in a 1985 publication, the L1 coil has 4...