This sample and hold circuit is from a 1969’s documentation. However, it can be built with modern equivalent components, including the matched pair of transistors.
We found this circuit in a 1967 Electronics World. It analyzes a transistor by determining its...
This circuit monitors the output level of an amplifier. The circuit is set to R4 and can be...
Originally designed for an incandescent lamp, this flasher or pulser can be adapted to operate with...