This circuit was found in a Popular Electronics from the 90s. The transistors are general purpose, and the gain depends on the ratio between R2 and R1.
This is the circuit of a sensitive voltmeter using a difficult-to-obtain 5 uA full-scale...
This circuit was obtained in a Portuguese publication in 1979. It is a simple code switch that...
June 2017 - The new touch screens with resistive sensors of the FK Series from NKK Switches can...