2N2497 Differential FET Voltmeter

Posted on Feb 6, 2014

Below is two single ended circuits which connected back to back give differential input. This circuit is not only has differential input feature, but also high impedance, much higher compared with the analog ammeter without this circuit. Here is the schematic diagram of the circuit: We aim to transmit more information by carrying articles. Please

2N2497 Differential FET Voltmeter
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