Ampex 601

Little is documented about the Ampex 601. It was a monaural tape recorder made in the late 1950s. A period photo in Audio-Collection (1958, p.166) captions it simply as the "Ampex 601 monaural tape recorder." It sits next to the Ampex "A" series deck with its cover removed, showing erase, record, and inline stereophonic playback heads. The caption indicates the 601 was a separate model from the stereo-capable decks Ampex was already building. That suggests a simpler, possibly educational or institutional role.

A passing mention in High Fidelity (November 1960, p.127) places the 601 within Ampex's price range of $349.50 to $595, though no price for the 601 itself is given. By August 1963, High Fidelity (p.44) listed an "AMPEX =601.2P" among a group of test instruments alongside a Hewlett-Packard oscillator. That hints at a two-track variant or a playback-only derivative. An account in Audio (October 1959, pp.79-80) describes Navy personnel at a school using the 601 to record lectures and play them back at sea. That points to a workhorse built for practical, no-frills recording rather than home hi-fi.

That is nearly everything the contemporary record preserves. No service manual, no brochure, no full specification sheet appears to have survived in the scanned literature. The 601 appears to have been a capable monaural recorder, likely portable or semi-portable given the military use. Ampex sold it for a few years in the late 1950s and early 1960s, before the rapid shift to stereo made it obsolete. Its circuit design and transport mechanics would almost certainly be close to the better-documented Ampex 600 and 900 series, but that remains conjecture until a manual surfaces.

Type: Monaural tape recorder (½-track or full-track mono likely; the "601.2P" suggests a 2-track variant)
Years active: Approximately 1958–1963 (based on magazine citations)
Known contemporary price range (Ampex line, 1960): $349.50–$595
Documented use: Educational/institutional recording (U.S. Navy school, per Audio 1959)