This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent transistors may be used. The gain is 20 dB.
This circuit was found in an old American documentation. The transformer is of the type found in...
The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the...
This circuit produces low power flashes in a LED. Frequency is adjusted by P1 and depends also on...