The 103YC is a Y/C line amplifier that also acts as an adjustable line driver. Accepting a single Y/C signal this unit provides three identical buffered Y/C outputs. These outputs not only amplify the video signal for long cable runs but, allow the operator to adjust the chroma gain and (or) luminance High Frequency and gain for proper video signal control. With a bandwidth exceeding 430 MHz the signal remains clean throughout most critical cable runs. Comes with a 12V ac adaptor. New old stock.