Uploaded August 2017 | Updated September 2026, 1 week ago
Introduction to the Sanyo M9980 portable stereo cassette recorder. I could find only one reference as to when the unit was built: 1976. The unit uses a LA4102 audio amplifier integrated circuit (IC) for each channel. Each channel also has a woofer/tweeter pair.
Introduction to the Sanyo M9980 portable stereo cassette recorder. I could find only one reference as to when the unit was built: 1976. The unit uses a LA4102 audio amplifier integrated circuit (IC) for each channel. Each channel also has a woofer/tweeter pair.










