This circuit, for frequencies up to 100 kHz, was found in American documentation from 1970. The circuit can serve as a reference for projects with modern equivalent components.
This is a general purpose pramplifier launched in Brazil by Philips in the years 70. The BC549 is...
This circuit was found in a 90s Popular Electronics. It is possible to analyze the voltages of an...
The pulse duration is determined by the 100k resistor and the separation by the 1M resistor. The...