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In a single transistor miller effect, as shown by my last miller circuit, the miller effect only amplifies the capacitance of the capacitor if the current is in one direction, but no current flows in the other direction due to the reverse bias of the transistor. In this circuit, there are two transistors, one to provide the miller effect in one direction of current, and the other to provide the miller effect in the other direction of current. However, since the miller effect is beta sensitive, and the beta is temperature sensitive, the miller capacitance is temperature sensitive. Maybe it could be used for a thermometer which measured the frequency of an oscillator.
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