Rectangular and triangular generator (CB21333E)

This circuit, based on a 555, was found in a Popular Electronics from the 90s. The circuit has the frequency determined by R1, R2 and C1.

| Clique na imagem para ampliar |

Sound modulated light (CB5986E)
This circuit causes an incandescent lamp to flash according to the input audio signal. The SCR...
Temperature Controller (CB6017E)
This circuit is from a factory documentation (National Semiconductor) of the 80's. The power...
DC and Stepper Motor Controls with the A3906 (CB23592E)
The A3906 integrated circuit from Allegro MicroSystems (www.allegro.com) consists of a single...