This circuit is from American documentation from the 70s. The circuit makes use of the operating system of the time, but it can be implemented with more modern equivalents.
This oscillator can be used to produce signals ranging from a few kilohertz to approximately 10...
This circuit measures alternating voltages on 5 scales and its accuracy depends on the tolerance of the...
This circuit was obtained in a 90’s Popular Electronics. The operators admit equivalents such as...