Digital control 555 (CB7550E)

This circuit aims to digitally control several audio channels. The circuit is from American documentation from the 90s.

| Clique na imagem para ampliar |

Scratch Filter (CB6655E)
We found this circuit in a Radio Electronics. The circuit can be seen elsewhere on this site. The...
Active low pass filter (CB20938E)
Found in old American documentation, this filter has a 8 dB per octave attenuation. The formulas for...
3 Volt Switched Regulator LM2577 (CB15410E)
The circuit presented is from the Linear Applications Handbook of the National Semiconductor of...