This circuit was found ina 90s Popular Electronics. It is intended for switching analog video signals, indicated components that are still common today.
This phase shift oscillator generates sinusoidal signals in the audio range. Frequency depends on...
This circuit, from an old Argentine publication, makes it possible to use a 1 mA full-scale...
This circuit is from a 1967 documentation. It makes use of varicap and diode tunnel in addition to...