HS-2 Hum-Stop Hum Eliminator

The HS-2 Hum-Stop is a custom-wound "hum-bucking" coil intended to reduce the level of mains hum acquired by video cables linking areas or buildings with differing earth potentials, and in any situation where long video cables (over 5 metres) pick up induced mains hum.

It is a passive device which eliminates up to 15 volts of superimposed or induced hum, yet it is virtually transparent to the video signal.