This circuit, of a Popular Electronics of 1969 is destined to firing a gas LASER of the time. The circuit makes use of a high voltage transformer for triggering.
This oscillator uses a ceramic resonator to determine the frequency. This kind of element is found...
This circuit for analog video signals was obtained from a Linear Technology documentation from the 1990s. The...
The integrated circuit used in this 80's application is not common today, but the design serves as...