Free Simple Circuit Diagram
Audio mixer is used to mix several audio signal from many channel into one channel, in analog form. The basic requirement of an audio mixer is that the mixed signal is a product of simple addition. When connected to several source, each source should not interfere each other on each input line. If each sources has various DC offset level, […]
Read more
This is The Fet Amplifier circuit. This circuit uses FET transistor. The gate of the FET must be negative with respect to the source, so a bias can be achieved in the following manner. The voltage that is across the source resistor is developed by the drain current flowing through the source resistor. Due to that action, the emitter become […]
Read more
This a circuit of The Darlington Pair, on of popular transistor circuit configurations. Sometimes, this circuit is called the super alpha pair circuit. This circuit is used as power output stage. This circuit can give amplification of 10000 times. Here is the schematic diagram of the circuit: The high amplification of this circuit due to the a change in base […]
Read more
This is a The Directly (DC) Coupled Amplifier circuit. This circuit is built from NPN transistor and PNP transistor. This circuit is used to amplify a DC signal. Since there is no coupling capacitor to block DC, this circuit can perform as DC amplifier as well as AC amplifier. Beside that, this circuit can amplify a very low AC frequencies […]
Read more