This circuit generates frequencies determined by R3 and C1. We found it in the Radio Electronics magazine of May 1988. The power supply must be symmetrical.
Found in a 1990 PE Hobbyst, this 4-digit circuit has a high response speed. The circuit is based...
The circuit shown bellow is na áudio amplifier using Darlington transistor in a complementary...
It can be obtained from Mouser Electronics new evaluation module for 1A stepper motors control...