Found in an 1868 Mullard documentation this circuit has a dynamic range of 10 Hz to 25,000 Hz. Modern equivalent transistors can be used.
This circuit was found in a 1980s telecommunications publication. The circuit uses a diode bridge to...
Mounting an oscilloscope is the dream of many of our Internet users, although it comes up against...
This is the traditional version of an astable multivibrator that makes two LEDs flash alternately at a...