This simple circuit is intended to test the zener test. RV1 can be calibrated in terms of voltage. The maximum voltage of the tested zener is that used in the circuit supply.
This small transmitter operates in the medium wave range. T1 is an output transformer for...
This circuit for 1 kHz sinusoidal signals uses a common operational amplifier circuit and is...
We can use this amplifier with low impedance headphones with good performance. Possible...