This circuit was found in Electronics Now. With it the dialing signals of a telephone are generated, reproduced in a buzzer.
We found this switching circuit in a technical documentation from National Semiconductor. The...
This OF-1 LO oscillator was found in a 1980s American documentation. The transistor can be any...
The Texas Instruments TPS80 LDO (Low Dropout) series (www.ti.com) can provide output voltages from...