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VS-2 and VS-4 VideoSwitch

The Visual Database Systems VS-2 and VS-4 VideoSwitchers are designed to select a single video output from either two (VS-2) or four (VS-4) incoming NTSC video sources. The control is via a TTL level output, typically from the printer port of an IMB PC or compatible. All input lines are terminated internally with 75 ohms and the VS-2 & VS-4 are designed to drive a 75 ohm line output.

Instructions for use:

VS-2 Two Input Switcher

VS-4 Four Input Switcher

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