This amplifier step for small signals can use any general-purpose transistor like the BC548. The circuit can be powered by voltages from 6 to 12 V.
This is a bridge for the measurement of low value resistances and high values too. The circuit...
This inverter bistable buffer circuit was obtained in a Hands On of the 90's. Next to the circuit we...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...