This circuit was found in a 1971s English magazine. We can still assemble it using BC548 transistor. The other components are common. The supply voltage of 6 or 12 V depends only on the relay.
Wien Bridge This Vienna bridge oscillator generates a sinusoidal signal whose frequency depends...
This circuit is from an English documentation from 1969. The circuit can be designed based on...
The acquisition of data, from a transducer, so that these data can be converted to digital form...