This filter was found in a Texas Instruments manual based on an operational amplifier 741. Other operational can be used and, with the indicated components, the rejection frequency is 2 kHz.
This tunnel diode circuit was found in American documentation from 1966. The tunnel diode is the...
This simple blinker for incandescent lamp was obtained from an English documentation. The power...
This circuit is ideal for the design of interfaces and shields, as it allows total isolation of...