With this circuit, from an old operational datasheet, it is possible to measure the CMRR, rejection in common mode of an operational one. The power supply must be symmetrical.
This circuit is used to block infrasonic signals in sound systems. The LM833 operating system is...
This oscillator for the fifth overtone of a crystal was found in a Radio Electronics magazine from...
We found the circuit of this Japanese transistorized commercial receiver in a documentation from...