Sanyo MR-910
Almost nothing is documented about the Sanyo MR-910. No specification sheet, service manual, or period advertisement naming this exact model has turned up in the sources available to the Archive. Even its precise product type is unconfirmed by any document we have. The "MR" prefix strongly suggests it belonged to Sanyo's reel-to-reel stereo tape unit line of the late 1960s and early 1970s, the same family that produced the MR-999, MR-80I, and MR-929. That is the natural reading of the name, but it remains an inference rather than a recorded fact.
What the period record does show is that Sanyo's MR-series tape units appear in UK dealer price lists of the era. Studio-Sound (March 1970, p.43) listed the Sanyo MR80I at £72 9s and the MR929 at £97 4s 9d, with hire-purchase terms offered. A similar listing in Studio-Sound (October 1970, p.47) again showed the MR80I but no MR-910. The model does not appear in those lists. That may mean it was short-lived, sold outside the UK market, or simply missed by the surviving paper trail.
If you own an MR-910, have a manual, or have spotted it in a period catalog, the Archive would welcome the correction.
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