The circuit shown has a voltage gain of 500 times and can use equivalent FETs like the BF245. The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook.
This medium wave radio with 7 germanium transistors was manufactured in Japan in the 1960s. Its...
This simple circuit can work with either 4.5 V or 6 or 9 V if a 1k resistor is added in series with...
This simple oscillator with just one transistor has a frequency determined by the characteristics of the...