This circuit was obtained in documentation on medical applications from 1966. The circuit is used in electromyography by switching the electrodes used with the equipment.
This Hartley-type audio oscillator was obtained in an earlier 1973 publication. It can be...
This circuit, of a Popular Electronics of 1969 is destined to firing a gas LASER of the time. The...
This circuit was found in a 90s American documentation from the 90s. The components are from that...