Found in American documentation from the 90's, this circuit oscillates up to 150 MHz. The transistor supports an equivalent and the diode is general-purpose.
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...