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 timer circuit was found in a 1980s American documentation. Transistors and SCR support modern...
The circuit shown below provides four adjustable reference voltages. Each of them is produced by a...
This well-known oscillator with complementary transistors was found in Radio Electronics magazine from...