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.