Noise Cancelling for Headphones (CB26024E)

This circuit was found in the September 1997 issue of Electronics Now magazine. The circuit is for low impedance headphones powered by two batteries.

| Clique na imagem para ampliar |

Remote Phone Ring (CB1349E )
This circuit, obtained in an old publication, causes a second telephone bell to be played in a...
Current and Voltage Regulator (CB15148E)
This circuit is from the 1982 SGS Linear Circuits Manual. The circuit provides currents from 35 mA...
Retriggered Monostable 741 (CB13486E)
This circuit generates pulses of up to 60 seconds with a short reset time. The circuit is from an...