Sony Model 350 Three-Head Solid-State Stereo Tape Deck
Three heads, a solid-state chassis, and a walnut base for under $199.50 - Sony's mid-1960s pitch to the home recordist who wanted a real component deck.
Overview
Three heads and a solid-state chassis for under two hundred dollars. That was the pitch Sony ran in the hi-fi press in the mid-1960s for the Model 350, a three-head solid-state stereo tape deck recorder aimed at the listener building a component system rather than buying a console. In a December 1965 advertisement in Audio (December 1965, p.49), Sony described the 350 as adding "professional performance to home entertainment systems," and promised that routing stereo recording and playback through it would "enduringly compliment your impeccable taste and passion for music at its finest." That is advertising copy, not a verdict. The spec sheet underneath it was more concrete than most.
The published figures were respectable for the price. Sony quoted a frequency response of 50 to 15,000 cps, ±2 dB, a signal-to-noise ratio of better than 50 dB, and flutter and wow under 0.15 percent — numbers that put the 350 in genuinely serious territory for a home deck of the period. The transport was a three-head design, which matters more than the marketing language suggests: separate record, playback, and erase heads let you monitor off the playback head while recording, catching tape dropouts, bias problems, or a misaligned azimuth in real time rather than after the fact. For anyone dubbing LPs or archiving a tape library, that capability alone justified the step up from a two-head machine.
The 350's front panel carried dual VU meters and what Sony called an automatic sentinel switch, which the company advertised alongside the deck's pre-amps. The cosmetics were gold and black, sitting on a walnut-grained low-profile base, and Sony leaned hard on the look in its print campaigns. The deck was sold as part of a six-model Sony Superscope tape lineup. It sat fourth in the range, just above the Model 250-A "Perfect Playmate" at under $149.50, and below the Model 260 Radial Sound system at under $249.50, the Model 530 Quadradial Sound system at under $399.50, and the flagship Model 660 E.S.P. reverse deck at under $575. The portable Model 200 anchored the bottom of the line at under $199.50.
The price positioning is the interesting part. The 350 sat at the same under-$199.50 figure as the Model 200 portable. That was a coincidence in the catalog, but a useful one for seeing who Sony thought it was selling to. The 200 was a self-contained portable system. The 350 was a component deck meant to be wired into a larger stereo. For the same money, you could have portability or you could have three heads and a proper component footprint. The company clearly expected the home recordist to pick the latter.
According to the available documentation, the 350 has no documented service history, known failure points, or collector price trajectory. None of that appears in the surviving material. What survives is the advertising. Sony ran the same copy in Audio in December 1965, January 1966, and April 1966, and the deck shows up in a six-model Sony Superscope lineup advertisement in HiFi/Stereo Review in January 1967 and in High Fidelity in November 1966. That repetition points to a sales life of at least a couple of years. It does not say how many were built or how many survive.
For a collector today, the appeal is a three-head solid-state Sony deck from the mid-1960s with a published flutter figure under 0.15 percent. It also predates the cassette era that would eventually swallow the open-reel home market. The caveats are plain too. Any deck of this age will need its belts, idlers, and electrolytic capacitors attended to before it will run to spec, and the 350 is no exception. Vintage tape transports do not sit for fifty years and come back to life without help. Parts availability for a mid-1960s Sony is a question mark that the surviving documentation does not answer. Buyers should expect to do the work or pay someone who can.
The 350 also sits in an awkward spot in the Sony tape hierarchy for anyone trying to date or value one. It is not the flagship 660, not the cheap 250-A, and not the oddball Quadradial 530. It is the middle-of-the-road three-head component deck.
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