Otari TC-50 (1987)
A five-pound box that let a quarter-inch two-track talk to video, for a fraction of the cost of stepping up to a four-track machine.
Overview
The TC-50 weighs under five pounds and measures 1-3/4 by 17 by 7 inches. It's a single-rack-space box that slides into a studio's existing rack. Otari built it as a center-channel time-code and FM processor, an inexpensive way to bolt time code onto an audio tape machine. It retrofitted directly onto Otari's own two-track machines, the MX-5050 series (B, BII, MKII-2), as well as any other four-head-position tape recorder. For a facility that already owned a quarter-inch two-track, this was the difference between adding a box and buying a whole new half-inch four-track, which had been the standard route to sync before the TC-50 arrived.
The unit was announced in May 1987 as the first product in Otari's new Otaritech line. The company set up the brand to target the broadcast and recording markets and to bring products to market faster. Otari's marketing director said at launch that the line could incorporate products developed independently of Otari while still carrying Otari-quality backing. The TC-50 shipped that August.
The TC-50 puts center-track time code on an audio tape machine, so a quarter-inch two-track can be synchronized to a video tape or film machine carrying stereo audio. Three tape speeds are time-compensated for coincident time-code and audio-track recording and reproduction. The box keeps code and audio aligned across those speeds, so the operator doesn't have to sort it out by hand. Front-panel LEDs show time-code level at both the input and the output, so you can see what's going in and what's coming back without patching in a scope.
There's also an FM pilot signal demodulated output compatible with Nagrasync. That let the TC-50 slot into film workflows with a Nagra in the chain. Installation instructions and supplies came in the box. The unit was positioned as a budget-conscious retrofit, and the trade press treated it that way. Mix (August 1987, p.144) ran the TC-50 in its preview column as part of the Otaritech launch. Recording Engineer (October 1988, p.97) later noted that JRF Magnetic Sciences offered a center-track time-code retrofit kit built around the TC-50, so the box had a small aftermarket of its own.
By mid-1989 a Boston-area broker was advertising the TC-50 as the affordable way to "add time code to your 2-track for $2k." By 1994 a demo unit was changing hands in the classifieds for $200, a steep fall from new. Collectors note that the TC-50 occupies an odd niche. It's not a recorder, not a synchronizer in the modern sense, and not much to look at, but it solved a specific sync problem for a specific class of machine at a moment when the alternative was a much larger purchase.
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