Ampex Model 910
A stereo tape machine from the early days of the format, and one of the harder Ampex decks to pin down today.
Overview
The Ampex Model 910 is the monaural-record, stereo-playback sibling of the Model 960. Period price lists put it at $399.50 when it was catalogued alongside its more capable relatives. In late-1950s Ampex literature the 910 shows up as the "budget" entry in a family that also included the 960 and the 952 tape deck. It was aimed at the listener who wanted to play back the new two- and four-track stereo tapes without paying for stereo recording.
That's the trade-off. The 910 records monaurally and plays back both 2-track and 4-track stereo tapes. That split made sense in the late 1950s, when prerecorded stereo was arriving but stereo recording hardware at home was still a luxury. HiFi-Stereo (1961) listed the Model 910 at $399.50, describing it as similar to the Model 960 but with monaural record and 2- and 4-track stereo playback. That one line is the clearest contemporary description of where the machine sat in the lineup: a 960 with the record electronics simplified.
Ampex's own advertising from the period leaned hard on stereo playback. The company's magazine copy trumpeted that the new Ampex "records stereo and plays both 2-track and 4-track tapes," though that phrasing belonged to the broader stereo rollout and not to the 910 specifically. The 910 sat on the playback side of that pitch.
Very little documentation on the 910 survives in the open. The fact sheet for this page is effectively empty: no confirmed specifications, no dimensions, no circuit details, and no service literature turned up in the research. What can be stated with confidence comes almost entirely from period price lists and classified ads. A 1963 Audio classified (May 1963) shows a buyer in Alexandria, Virginia placing a "WANTED" notice for an Ampex Model 910 tape recorder, asking sellers to state condition and price. So the machine was still circulating in the used market a few years after it left the catalogue.
Any 910 needs the same care as any late-1950s Ampex. Expect rubber that has likely turned to stone, capacitors that have drifted, and heads whose condition decides whether the deck is worth restoring at all. The 910 shares its basic transport and much of its electronics with the 960 family, so parts and knowledge from that line are the practical starting point. That's an inference from the period description, not something documented in surviving Ampex service material for the 910 itself.
To sum up the facts: the Model 910 is a real, catalogued Ampex stereo-playback deck priced at $399.50 new, and it's obscure today. Anyone considering one should verify the head condition and confirm which transport variant they're looking at before buying. Don't expect the documentation trail that follows the 350, 440, or ATR series.
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