Radio Design Labs EZ-HK2
RCA Composite Video Hum Eliminator


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List Price: $124.01
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Radio Design Labs' EZ-HK2 is a quality video transformer isolation module for use with standard 75 ohm composite video.  Input and output connections are provided on gold-plated RCA jacks.

The shield connection of the input jack is electrically isolated from the case and from the output ground.  The shield connection of the output jack is connected to the case shield through a rear-panel ground-lift switch.

The EZ-HK2 eliminates hum due to ground loops when it is installed between a video source, such as a computer or DVD player, and the input of a grounded video monitor or projector in an A/V or video system.


  • Video Ground-Loop Hum Elimination
  • 75 Ohm Composite Video Galvanic Isolation
  • Input and Output RCA Jacks
  • Switch-Selectable Ground Lift for Output Jacks
  • Portable Use or Permanent Installation
  • Gold-Plated Connectors
  • Ground-Lift Switch
  • Excellent low and high video frequency response


  • Input: Composite Video, 1 V p-p nominal, ground-isolated
  • Input Impedance: 75 ohms
  • Input / Output Connectors: RCA Phono
  • Output: Composite Video, 1 V p-p nominal
  • Output Impedance: 75 ohms
  • Output Ground Isolation: Switch-selectable
  • Gain: Unity nominal (passive circuit)
  • Video Bandwidth: 40 Hz to > 5 MHz
  • Case dimensions: 2.9" W x 3" D (7.4 x 7.6 cm)
  • Mounting size: 1/6 rack width
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