741 3-Band Tone Control (CB25839E)

This control for bass, midrange, and treble was found in the March 1995 issue of Electronics Now magazine. The circuit requires a dual power supply.

| Clique na imagem para ampliar |

Operational Astable Variable Without Symmetric Source (CB14829E)
This circuit can generate signals from 1 Hz to more than 100 kHz with a range determined by the...
LED Display for ASCII Code (CB13762E)
This circuit was found in a 1977 documentation. With it we have the direct indication, through LEDs...
Positive only switch (CB6924E)
This circuit was found in a 1965 Electronic Design. What it does is respond only to positive...