This Electro-Technic Products ETP BD-20AC High Frequency Generator Corona Treater is in great condition and is guaranteed to be functional with a 30 day return policy. This item came from a local lab that had surplus equipment. Unit is possibly in unused, new old stock opened box condition. We urge customers to view all photos as they show overall condition, included accessories and functionality. Listing only includes what is shown in photos. Please feel free to contact us with any questions. Model Introduction: The BD-20AC operates at a very high frequency in the MHz range, generating an electric field created around the electrode which is used for surface treating of polymers. Included are 3 electrodes to treat a variety of surfaces. The voltage is adjustable. The unit consists of a power control unit and a separate high voltage handle. What separates it from other models is that it generates an adjustable high voltage output of 10,000 to 45,000 volts at a high frequency of 4.5 MHz. The spring tip electrode is flexible to protect delicate glassware under test. Key Features and Operating Characteristics: The generator handle is attached with a 6 ft. cord to a power control source with ON/OFF switch. It uses a transformer inside to providing isolation from line voltage, and a line voltage filter to reduce interference with the power line while in use. Metal tabs are incorporated into the case for permanent mounting. The generator handle is made of durable plastic, with a control knob to adjust the output voltage. Output voltage is adjustable from 10,000 to 45,000. Output frequency is 4.5 MHz. The input power to the Model BD-20AC is approximately 40 watts. The output power is adjustable between approximately 5 to 30 watts Separate models operate from either 115 or 230 VAC, 50/60 Hz. Overall dimensions: 4x8x3 power supply; 11x2.5 without electrode. Weight: 8 lbs. Key Applications and Accessories: The primary application is surface corona treating. Accessory electrodes included are the 12801 1 in. Round Electrode to treat flat surfaces, and 13811 3 in. Field Effect Electrode to treat flat and curved surfaces.