Stereo indicator MC1310 (CB22122E)

In the figure we show how to add an indicator LED to an MC1310 stereo decoder. The circuit is from an old documentation.

Bridge Photometer (CB18545E)
This simple photometer circuit uses an LDR as a sensor and the indicator is a sensitive...
Wien Bridge Oscillator (CB8089E)
This circuit generates sinusoidal signals between 300 and 3000 Hz. We find a 303 Circuits from the 90's....
Complementary Transistor Oscillator (CB946E)
This oscillator uses germanium transistor avaialble in 1958 when the project was published....