Naval Undersea Warfare Center Detachment, New London Commercial Acquisition Department, Code 59, Building 39, New London, CT 06320-5594

58 -- SOURCES SOUGHT FOR DUAL CHANNEL, 1KVA PER CHANNEL, POWER AMPLIFIER POC Contact Carol Gorman, Contracting Officer at (860) 440-6155 The Naval Undersea Warfare Center, Division Newport, Detachment New London is seeking potential sources for a Dual Channel, 1KVA per Channel, low distortion Power Amplifier for use on the Acoustic Augmentation Support Program (see specification below). Please review this information and provide factual supporting documentation, including technical data sufficient to permit meaningful evaluation by the requirer, and a description of your relevant corporate experience (include applicable contract numbers and names of contract administrators with their telephone number). Provide this information to Carol Gorman, Naval Undersea Warfare Center Detachment New London, Code 5915, Bldg. 39, 39 Smith Street, New London, CT 06320-5594; or facsimile number 203-440- 6584. Responses before 30 August 1996 will be appreciated. Specification: The following describes the electrical, physical, and environmental requirements of a high power, very low distortion, Class B/AB, two channel, solid state power amplifier. The amplifier will be used to drive high power ceramic sonar transducers, with their associated tuning and impedance matching transformers. Rated power into resistive and reactive loads, low distortion, high reliability, and minimum weight are key amplifier characteristics. Amplifier Requirements--Number of Channels: Two (2). Operating Class: Class B/AB; ('switch mode' amplifiers are NOT acceptable). Output Power Per Channel: 1 KVA min, single tone (sinusoidal), continuous duty, 20 Hz to 20 kHz. Load Configuration: (GFE) Transformer plus resistive and reactive sonar transducers. Load Impedance: (1) AC impedance magnitude, 8.0 Ohms min, 20 Hz to 20 kHz; (2) AC Impedance Phase Angle, (-)88 deg. to (+)88 deg.; (3) DC resistance, 0.1 Ohms min, (GFE transformer primary winding). Damping Factor: 100 min, 20 Hz to 20 kHz. Voltage Gain & Tolerance: 26 dB +/- 0.5 dB, 8 Ohm load or higher; 20 Hz to 20 kHz. Input Impedance: 10 K Ohms min, differential, 20 Hz to 20 kHz. Common Mode Rejection: 40 dB min, 20 Hz to 20 kHz. Input Connectors: One (1) isolated BNC connector per channel. Total Harmonic Distortion: 0.1%THD max, lVA to lKVA output per channel, 20Hz to 20kHz. Self Protection: Amplifier shutdown for output over-current or over-temperature. Prime Power: 440V, +/- 10%, 3 Phase, 60 Hz, delta connected. Monitor Features: Scaled replicas of output voltage and current for each channel. Weight: Minimum practical. Mounting Configuration: 19 inch rack mountable. Depth behind front panel: 20.5 inches max, including connectors, handles, etc. Depth in front of front panel: 2.5 inches max, including handles, grills, etc. Height: Minimum practical. Cooling: Internal forced air. Operational Ambient Temp.: 50 to 95 degrees F. (0208)

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