This circuit is suitable for the calibration of old analog oscilloscopes. It was found in documentation from the 1970s and could be useful if someone is recovering an oscilloscope of the time.
We found this circuit in a 1981 documentation. The circuit can still be easily assembled, as it...
This circuit was obtained in an old publication from 1979. It describes a simple low frequency...
This circuit was found in a 90's EDN. It can be implemented with either TTL or CMOS logic and used...