This shield was found on an old EDN. The MOSFET can be of any type according to the controlled load. The power can be between 5 and 15 V typically and can be different for the MOSFET.
The presented circuit is a sinusoidal oscillator for 1 kHz that makes use of the four amplifiers...
This headphone amplifier has good gain and high input impedance. The circuit is from Electronics Now and...
Based on the 4006 this circuit generates random signals in a frequency range that depends on L1...