This circuit was obtained from Dutch documentation from 1967. It uses transistors of the time which can be the BFY50 and 51 for the output and the BC series for the others.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
This circuit was found in a 1980s English publication, but can still be easily assembled by the...
Originally suggested by Electronic Design in a 1965 documentation for use with oscilloscopes, this probe has...