Moog TB-303
A page that has to start with a correction: no Moog TB-303 was ever built, and collectors should know why this entry exists at all.
Overview
Before a single spec gets discussed, the archive owes the reader an honest note about what this page is. The TB-303 was not a Moog product. Every period document that names the instrument places it in Roland's catalog, and the sourcing behind this entry is thin enough that the correct move is to say so plainly rather than dress it up. The research file for this page came back empty — no verified facts, no manufacturer documentation naming a Moog TB-303, and no review text describing one. What follows is therefore a record of a misattribution, not a profile of a real machine.
The confusion is easy to understand even if it isn't excusable. The TB-303 Bass Line appears throughout early-1980s British music retail advertising alongside genuinely Roland-branded gear — the TR-606 Drumatix, the TR-808, the CR-5000 and CR-8000 Compurhythms, the MC-202 Microcomposer — and those dealer pages in Electronics & Music Maker from early 1983 treated the whole rhythm-and-bass lineup as a single family. A cataloguer working quickly from a dealer listing could plausibly file the Bass Line under the wrong manufacturer. That is almost certainly what happened here. The instrument itself, in every dealer advertisement and reader letter that mentions it, is a Roland.
Period correspondence is the most useful evidence the archive has for placing the TB-303 in a working rig, and none of it involves Moog. One reader writing to Electronics & Music Maker in 1983 described a home system built around an Apple II, a Roland CMU-800 interface, a Pro-One and a Juno 6, synced to a TR-808 and a TB-303 — a setup that treats the Bass Line as one voice in a larger Roland-and-sequential-circuits ecosystem. The TB-303 shows up in that world as a small, sequencer-integrated bass unit, not as a keyboard instrument and certainly not as anything carrying a Moog badge. Collectors who have owned both marques will tell you the two houses sounded nothing alike in this period, and the paper trail agrees.
There is one genuinely interesting thread in the source material, and it belongs to a different product entirely. A build-it-yourself MIDI synthesizer called the BassAce, documented in a hobbyist manual, describes itself as "based loosely on the TB303" and lists its own feature set: a MIDI interface with key CV, modulation CV to the VCF cutoff, gate, slide and accent outputs; a full-range saw/square VCO; a sub-octave generator offering -1 and -2; a Moog-type four-pole VCF; an OTA-type VCA; separate decay/release envelopes for the filter and the amplifier; and a "TB303 Style Accent" circuit. That document is the closest thing in the archive to a Moog-and-TB-303 intersection — a DIY design that borrowed Roland's accent behavior and paired it with a Moog-style ladder filter. It is a fascinating footnote for builders, but it is not evidence that Moog manufactured a TB-303, and no reader should take it as such. The BassAce is a third-party kit, not a factory instrument.
The honest summary for anyone landing on this page from a search engine: if you are looking for specifications, production dates, original pricing or service information for a Moog TB-303, none of it exists because the instrument does not. The archive's fact sheet for this entry contains no product data at all — it exists only to flag the identity error. Rather than pad the page with plausible-sounding numbers borrowed from the Roland instrument, the responsible thing is to send the reader to the correct entry. The Bass Line is a Roland design, full stop, and any listing, auction description or dealer tag that calls it a Moog is mistaken.
What this page can legitimately document is the shape of the mistake and the company the TB-303 kept in period print. The dealer advertisements that ran in Electronics & Music Maker through 1983 grouped the Bass Line with the TR-606, the TR-808 and the MC-202 as a rhythm-and-bass section — a grouping echoed in EQ Magazine (March 2000, p.28), which listed the TB-303 alongside the SH-2, SH-3A, TR-909, TR-808, TR-707, TR-606, MC-303 and MC-202 in a single dealer inventory — a natural cluster for a shop floor and a natural trap for anyone compiling a manufacturer index from retail copy rather than from the instrument's own back panel. That is the whole story here. There is no hidden Moog prototype, no rebadged OEM arrangement, no licensing deal. The archive will keep this entry visible as a correction rather than delete it, because misattributions propagate: once a wrong brand gets attached to a model number in a database, it resurfaces in auction listings and forum threads for years afterward.
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