Realistic LAB-300 (1976)
A belt-drive manual that Radio Shack sold as "the everything turntable" — cartridge, dust cover, and semi-automatic arm return already in the box.
Overview
The LAB-300 arrived in Radio Shack's lineup on November 15, 1976, priced at $159.95 with a steel-hinged dust cover and a factory-installed Realistic/Shure magnetic cartridge that the company valued at $44.95 on its own. That bundling was the pitch: Radio Shack's own advertising called it "the everything turntable," stressing that there were no extras to buy. HiFi-Stereo (November 1976, p.56) ran the same line in its pages, noting that the dust cover and cartridge were included in a low discount price and that the discount "came off before the price went on." The 1977 Radio Shack catalog introduction confirms the model as one of the new items in that year's book, alongside the STA-2000 receiver and the Optimus T-100.
The deck itself is a single-play manual with a twist: semi-automatic operation. The user touches the arm only to start the record; at the end of the disc an independent mechanism returns the arm to its rest, the lock snaps gently into place, and the motor shuts off. Belt drive is the core of the design — Radio Shack's literature claims it reduces noise, vibration, and rumble to the vanishing point, which is marketing language, but the underlying approach (decoupling the motor from the platter) is the standard belt-drive argument and the LAB-300 is built around it. The 11½-inch, 2.6-pound cast platter is the mass that does the actual speed-stabilizing work, and the 4-pole synchronous motor is claimed to hold speed during voltage fluctuations — a real concern in the 1970s, and a spec worth noting because synchronous motors lock to line frequency rather than voltage.
The tonearm is a balanced S-shape with a point-to-stylus length of 8½ inches, which is a long effective length for a consumer deck and helps keep tracking error low across the record. Stylus pressure is directly readable and adjustable from 0 to 4 grams; the factory elliptical stylus is set up to track well inside that range, and High Fidelity (May 1977, p.36) noted the S-shape arm tracking accurately down to 3/4 gram. Adjustable anti-skate is provided to minimize stylus and record wear, and a viscous-damped cueing/pause lever raises and lowers the stylus into the groove rather than dropping it. A "vibration isolation" feature guards against jarring and groove jumping, and the base is finished in walnut-grained vinyl veneer. The dust cover is steel-hinged and stays at any angle for easy record changes — a small thing that owners of lesser covers notice immediately.
The numbers Radio Shack published are respectable for the price: speeds of 33⅓ and 45 RPM, wow and flutter under 0.10%, and rumble (DIN B) of −60 dB. High Fidelity (May 1977, p.36) repeated the sub-0.1% wow-and-flutter and better-than-−60 dB rumble figures in its coverage, so these aren't manufacturer-only claims. The 2.6-pound platter mass and the belt drive together are what make those figures achievable at this price point; a heavier platter would do better, but it would also cost more and load the motor harder. The LAB-300 sits at the top of Radio Shack's manual line as introduced — the same 1977 catalog that announced it also listed a LAB-100 single-play manual at $99.95, so the LAB-300 was positioned as the step-up deck, not the entry model.
What the LAB-300 is not: a changer. Radio Shack's own copy makes the point that eliminating the complexity of a changer cuts cost and noise and lets the company concentrate on getting maximum music and life from the discs. That's a fair description of the tradeoff — you give up the stacking convenience and gain a simpler signal path and less mechanical clutter around the platter. The semi-automatic return is the compromise: you still cue the record yourself, but you don't have to get up at the end of the side.
In practice the LAB-300 turns up as a complete working package more often than most turntables of its era, because the cartridge and cover came with it and tended to stay with it. The Realistic/Shure cartridge is performance-matched to the arm per Radio Shack's literature, and the elliptical stylus is the part most likely to be worn on a survivor — a replacement stylus is the first thing to budget for. The belt is the other consumable; a deck that's been sitting will need one. The 4-pole synchronous motor and the semi-automatic return mechanism are the two systems that determine whether a used example is a bargain or a project, and both are checkable before purchase: the motor should hold pitch through a full side, and the arm should return and shut off reliably at the run-out groove.
It's a Radio Shack house-brand turntable from the peak of the catalog era, sold through more than 4,800 stores, with a cartridge worth nearly a third of the asking price included. The walnut-grained vinyl veneer and steel-hinged cover are period-correct rather than luxurious, and the spec sheet — sub-0.1% wow and flutter, −60 dB rumble, 8½-inch effective arm length, 0–4 gram tracking force — is honest mid-fi rather than aspirational. For someone who wants a manual deck that behaves itself, comes with its own cartridge, and doesn't demand a collector's premium, the LAB-300 is exactly what Radio Shack designed it to be.
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