TEAC 3300S (c. 1971–1974)
A three-motor, three-head semi-pro reel deck that sold for $499.50 and asked only that you keep the heads clean.
Overview
Start with the price: $499.50. Teac's launch advertising in High Fidelity (August 1971, p.66) put the 3300 at that figure and claimed the deck carried "all the specs normally found only on professional tape decks" - three-motor drive, three hyperbolic record and playback heads, source/tape monitoring, and controls the copy called human-engineered. That's marketing language. The hardware underneath it is why the 3300S still turns up in working collections five decades later.
The plain "3300S" designation is thin in the documentary record, and the Archive's own research notes say so. What is documented is the family: Teac's 3300 semi-professional reel-to-reel line, launched in the early Seventies. High Fidelity (January 1972, p.53) reviewed the quarter-track 3300-10 and placed it in a series of three models in the $500 bracket - the 3300-10, the half-track 3300-12 at the same 7½ and 3¾ ips speeds, and the half-track 3300-11 running 15 and 7½ ips. The "S" suffix shows up in the record by 1974, when Teac advertised the two-track 3300S-2T as a mastering deck for recordists who wanted studio quality without the room or budget for a full console and separate mastering electronics (High Fidelity, March 1974, p.99).
Mechanically, the 3300S is a three-motor, three-head quarter-inch machine that takes 10½-inch reels and lets you monitor off the playback head while recording. Owners describe it in the same terms the period advertising used - a semi-professional deck, not a consumer toy. Whether the plain 3300S and the A-3300S are the same machine under two designations is not resolved in any source the Archive holds. Listings and manuals use both, so buyers should read the badge and the paperwork rather than trusting a title.
Key Features
Three-Motor Transport with Hysteresis Synchronous Capstan
The drive is the heart of the thing. A single hysteresis synchronous capstan motor, two-speed and switchable between the 4-pole and 8-pole windings, pulls the tape. Two eddy-current induction reel motors handle supply and take-up. According to the available documentation, the capstan shaft measures 6 mm in diameter with a roundness error of 0.15 μ, and the flywheel is dynamically balanced. That sounds like catalog padding until you hear what an unbalanced flywheel does to pitch stability. The reel motors are 6-pole in-rotor types, chosen for strong starting torque and low hunting.
The manual describes a transport with complete electrical control of all operations and special delay circuitry to prevent the acceleration "growl" that cheaper machines make when motion begins or reverses. Control logic runs through micro switches, relays, and solenoids. That is a step up from the mechanical linkages on lesser decks, and it's why the buttons feel like buttons rather than levers.
Three Hyperbolic Heads and Off-the-Tape Monitoring
Separate erase, record, and playback heads mean you can hear what's actually going onto tape while you're recording it. That confidence monitoring is what separates a serious deck from a consumer one. The record and playback heads are hyperbolic in profile, a shape chosen to hold distortion down into the high frequencies while keeping the low end from being disturbed by contour effect. The erase head uses a ferrite core with litz-wire windings, and the heads carry front shields against crosstalk from adjacent tracks and leakage flux from the transport's motors.
Bias runs at 100 kHz, high enough, per the design notes, to keep beat frequencies out of the audible band. The push-pull oscillator is described as having enough margin to stay stable even with low-noise tapes that demand deep bias. Bias and equalization switch independently, which helps if you're moving between standard and low-noise formulations.
Direct-Coupled Preamp and Expanded-Scale Meters
The equalizer stage uses a three-stage direct-coupled NPN-PNP-NPN transistor circuit. The same approach carries into the two-stage line amplifier, which is said to hold linearity better than 25 dB above nominal output. Left and right level meters are independent and expanded-scale. Microphone and line input volumes are separate, so mixed recording, a mic over a line feed, is possible without an outboard mixer.
Reel Handling and Tension Control
Quick-lock reel clampers set by turning the shaft to the right, with a compensation sheet for adjustment. A reel-size selector switch changes take-up and back tension together depending on whether you're running 7-inch or 10½-inch reels. The tension arm is an oil-damped type, and the brake mechanism pairs aluminum die-cast components with special felt, fed from the 6-pole reel motors at constant speed for balanced braking. Manual cueing is possible: lift the pinch roller by hand during fast winding and the tape lifter retracts so the tape touches the head.
Timer Recording and Chassis Construction
With the optional RC-320 timer control adaptor and a timer, the deck will record and play back unattended. During standby the pinch roller and the rest of the mechanism sit free of stress. The panel chassis combines stainless steel and aluminum, with a die-cast reinforced side frame. A four-digit index counter and a headphone jack tied to the playback volume round out the front panel.
Historical Context
The 3300 family arrived in 1971 with Teac's advertising positioning it as semi-pro gear at a fraction of professional cost. High Fidelity (January 1972, p.53) reviewed the line as a trio of $500-bracket machines, and the "S" designation appears in the record by 1974 with the two-track 3300S-2T mastering variant. Teac's own manual frames the deck's audience two ways at once: designed for the beginner through simplicity of design, yet built to the technical requirements demanded by semi-professionals and experienced enthusiasts. The A-3300S is described in period documentation as a sister machine to the A-2300S, and factory service literature covers it alongside the A-3300SX and A-2300SX.
No source the Archive holds states exact production start or end dates for any 3300S variant. The "c. 1971-1974" in the heading reflects the family launch and the appearance of the S designation, not a confirmed production run.
Collectibility & Value
Asking prices on the secondary market are wide and undated in the Archive's records: a non-working A-3300S listed at $250, a working 3300S at $790. Condition varies a lot. Listings describe scuffs, nicks, and chipped wood, which is normal for a 20 kg machine that's been moved a few times. Parts are the good news: replacement pinch rollers run around $18.79 and capstan belts around $12.25, and fitment lists cross the A-3300S with the A-3300SX, A-3300SR, A-3300-10, and A-3300-12, so the family shares consumables. Dial lamps (6 V, 0.25 A, 30 mm by 6 mm) are also findable. One owner-reported failure: a burned 3.3-ohm 2 W wire-wound resistor in the first stage of the power supply, which is a cheap fix if you can solder. An original factory service manual with schematics exists and is worth owning before you start poking around inside.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Teac A-3300 (1972)
- Teac A-3300S (1975)
- TEAC 550RX
- Marantz 2226 (1974-1976)
- Marantz 2226B (1979-1980)
- Marantz 2235 (1974-1977)
- Marantz 2238B (1978-1980)
- Marantz 2250B (1978-1980)
- Marantz 2252 (1974-1977)
- Marantz 2252B (1978-1980)