Rectangular RF and Audio Generator (CB1447E)

Details
Published: Tuesday, 03 December 2019 16:37
Written by Newton C. Braga 
  We find this circuit in a 1977 technical documentation. The circuit generates signals in a wide range of frequencies, selected by a selector switch. The signal strength is controlled by the output potentiometer. The circuit must be powered by a voltage of 5 V.

Circuit Bench

  • 10 Hour Timer (CB1535E )

         This circuit was obtained in a 1974 Motorola timers publication. Transistors allow equivalents, the 2N2646...

  • Timer Very Simple (MSB059)

    A capacitor stores electrical charges. This component is formed by two metal parts called...