Check the listing for details. Realistic SA-10 Vintage Solid State Stereo Amplifier # 31-1982B Untested, Read. Condition: Used. Listed at 19.95 USD. The Realistic SA-10 Vintage Solid State Stereo Amplifier Model 31-1982B is a classic piece of vintage electronics that is perfect for audio enthusiasts looking to add a retro touch to their collection. This stereo amplifier, released in 1982, features a solid-state design and the iconic Realistic brand. While it is listed as untested, it holds potential for those who appreciate the sound quality and design of vintage audio equipment. Perfect for vintage audio collectors or music enthusiasts looking to add a unique piece to their setup. NOTE: This amplifier came from an estate. No knowledge of history and I have no way to test it…sold as is. All switches and knobs turn and move freely. See pics for condition. Appears to be in good condition.