Sanyo M9820K (c. 1984)
Documentation on the Sanyo M9820K is thin. Here is what the record shows. It's a Japanese-made radio tape recorder, dated to 1984 in a Reverb listing title, though no second source confirms that year. It was a portable unit with AM/FM plus shortwave bands, a digital display showing time, frequency, and tape information, a headphone jack, and an auxiliary input for external sources. It ran on a rechargeable battery charged via the included AC adapter, and came with a carry handle and fold-down antenna. The housing is sturdy plastic, lightweight and resistant to scratches and impacts.
Surviving owner reports are mostly about repairs. One restoration post (drive2.ru) documents replacing the belt, pinch roller, and idler, and notes the playback speed was still clearly wrong afterward. Another seller simply states the belt needs replacing. A Reverb listing said the radio and cassette functions worked well, but the aerial and power cable appeared non-original.
Known specs are minimal:
- Type: Radio tape recorder, portable
- Bands: AM/FM, shortwave
- Display: Digital (time, frequency, tape info)
- Inputs: Auxiliary in; headphone jack
- Power: Rechargeable battery, AC adapter
- Country of manufacture: Japan
- Year label: 1984 (unconfirmed)
Listed prices on marketplaces range from about $13 to $150, with a Reverb asking price of $115 and Russian listings at 6,500-8,500 ₽. No power output, speaker driver sizes, dimensions, or original price are documented anywhere we've found.
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