Transistor Capacitance Meter Circuit

Posted on January 14, 2010 by Adam

This is a circuit that can be used to meter the capacitance. This circuit is similar to previous meter circuit. It has a little difference, this circuit uses transistors rather than logic gates. Here is the circuit:
transistor capacitance meter circuit circuit schematic diagram
This circuit uses pnp transistor. if we can’t find exact type as shown in the circuit, we can use almost any pnp transistor with collector current handling capability of 100 mA and frequency bandwidth og 100MHz to replace the transistor.

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