ISD1016 Voice Recorder (CB25448E)

This 16-second voice recording circuit was featured in a telephone answering machine circuit in the March 1992 issue of Radio Electronics magazine.

| Clique na imagem para ampliar |

Four Quadrant Multiplier (CB20148E)
This circuit performs the multiplication of voltages without considering its signal. The circuit is...
SCR Bank for 1 kW Sources (CB20287E)
Found in an American publication from the 1980s, this circuit is designed to regulate the voltage of...
Percussion Synthesizer (CB18636E)
This damped oscillator generates percussion sounds played on a small amplifier. The circuit mimics...