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"Remco 1979 Sound FX Machine with original box. Box isn't in great shape. Synth is super cool. The Remco Electronic Sound FX machine was based on the Texas Instruments SN76477 analog sound effects chip. This little late-1970s integrated circuit generated square and noise waves that could be modulated to create all manner of bleeps, bloops, buzzes and auditory insanity. It's perhaps most famous as the sound chip used in the arcade version of Space Invaders. This is an amazing little synth. Weighs about 1 lb. itself. Battery connections are in good shape, and the battery well is clean of corrosion. This will look great when you clean it up a little. It looks great now, and sounds it too - how often do these come available? To take it to another level, fit it with a quarter inch output. The small built in speaker is loud for a battery operated machine, but imagine it through real speakers and it basically can sound like an EMS Synthi - mean, angry and demanding attention."