RGB to NTSC video converter (CB9387E)

Found in a Radio Electronics from the 90s, this circuit converts analog TV signals from RGB to NTSC. The integrated circuit is not common today.

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Sinusoidal Oscillator (MSB013E)
This circuit produces low frequency sinusoidal signals. The circuit is a phase shift oscillator...
Speaker Systems for Bench (CB17695E)
This 2009 circuit serves as an aid to those working on audio equipment repairs. With it, the...
1 kHz third order filter (CB12570E)
The circuit shown in the figure is a third order Bessel filter with unit gain using two...