Found in the book 303 Circuits, this circuit compresses signals from 25 mV to 20 Vpp to intensities of 1.5 Vpp to 3.5 Vpp. The frequency range is from 7 Hz to 67 kHz.
This circuit was found in documentation from the 80s. It is based on unijunction transistors not...
The speed of the motor connected to this circuit depends on the amount of light that strikes the...
This sensor circuit from a 1967 Ferranti documentation uses components from the era. The circuit...