We found this circuit in a 1965 Electronic Design. Transistors are still common but admit equivalents for some of them. The circuit drains a current of only 4 mA.
The purpose of this 1-transistor amplifier is to allow the use of a milliammeter in an application...
Found in Harris' 90s documentation, this circuit has a gain of 60 dB at 20 MHz. Equivalent...
This amplifier is from the 80s integrated circuit manual itself. Equivalent configurations can be adopted for...