The circuit uses a fast Norton amplifier in a configuration that excites a 75 ohms line. The circuit is suggested by National's 1994 Linear Applications Handbook.
This circuit also appears elsewhere on this site, obtained from other sources. This is an 80's...
This ttransistor test was found in a 1987 documentation. It is a simple oscillator that allows to...
In the circuit of the figure we used a potentiometer of 1 k ohm. We can use a larger...