Video modulator circuit

Posted on Jul 22, 2012

These are modulator circuits for modulation of video signals on a VHF/UHF carrier. The circuits require a 5 V power supply and few external components for the negative modulation mode. For positive modulation an external clamp circuit is required.

Video modulator circuit
Click here to download the full size of the above Circuit.

The circuits can be used as general-purpose modulators without additional external components. The IC is TDA6800.

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