This electronic voltmeter circuit was found in a documentation from the 50's. The sensitivity is from 100 to 200 mV. The transistor used is germanium of the time.
![](/images/sampledata/cir/CB20520E1_0001.gif)
This electronic voltmeter circuit was found in a documentation from the 50's. The sensitivity is from 100 to 200 mV. The transistor used is germanium of the time.