This modulator circuit for low intensity signals is from old documentation. The integrated circuit used is uncommon today. The circuit operates with signals up to 2MHz.
In the figure we have an interesting configuration in which we took advantage of the very high...
This 10 kHz filter is based on a 741 operational amplifier. The circuit is from Electronics Now...
The circuit in figure is suggested by ST Microelectronics (www.st.com) and consists of a gyroscope with...