This is the factory setting (National Semiconductor) of the TDA2006 as an audio amplifier. The circuit works with 24 V and the diodes can be 1N4148.
In the figure we have the circuit of a multi-range ammeter using a 50 uA full-scale instrument. The...
This sensor circuit was found in an American 1980s documentation. Modern operational amplifiers can...
The idea of this circuit from a 1960 publication is simple: we can switch the transistor being...