This circuit converts a high voltage into a frequency using an optical coupler. The transistor can be 2N2646 and the coupler admits equivalent. The circuit is from a 1974 publication.
This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303...
The time constant for this circuit found in a 1973 publication is given by R and C. The shot is...
This simulation shows how to test an IGBTs using a signal source and the virtual oscilloscope of...