This circuit was found in Mullard's transistor application manual from 1960. More modern transistors can be used. The zener diodes used have the indicated voltages.
This signal attenuator was suggested by Electronics Now magazine in April 1999. The circuit is...
This common metronome configuration has already appeared in several of our articles and projects. This...
In the figure we have a circuit with two operational amplifiers 741 capable of doubling the...