This circuit for equipment adjustment and diagnostics was found in a Mullard transistors manual from 1960. Information about the transformers is given with the diagram.
This astable multivibrator configuration causes two LEDs to alternately flash at a frequency...
In the figure we show our first circuit that consists of a simple touch switch capable of driving a...
This electromyography monitor is from a 1978 publication on operational amplifiers. The components are...