Akai 3000D
The Akai 3000D is a quarter-track stereo tape recorder with silicon transistor preamplifiers. It was a tape unit meant to be added to an existing hi-fi system that already had an amplifier and speakers. Akai marketed it as “the missing link” that would complete a stereo setup, and the tagline shows up repeatedly in British magazine advertising in 1968 and 1969.
What's documented about performance comes from a review in Studio Sound (July 1968, p.36), which published the manufacturer's specification and measured figures. The recorder had two speeds: 7½ ips (19 cm/s) and 3¾ ips (9.5 cm/s). Wow and flutter in playback was rated at less than 0.15% RMS at the higher speed and 0.25% at the lower speed. The reviewer found those figures acceptable for its class. Frequency response was quoted as 30-22,000 Hz ±3 dB at 7½ ips, and signal-to-noise ratio was better than 50 dB. The machine used three heads (erase, record, playback) and ran quarter-track tape.
Beyond the spec sheet and the advertising campaign (Akai was distributed in the UK by Rank Pullin, a company within the Rank Organisation), little else about the 3000D has survived in period literature. No service manual excerpts, no detailed circuit descriptions and no contemporary comparative tests have turned up. It appears to have been a straightforward, competent consumer tape deck from the late 1960s. It was not a flagship, but it was a step into stereo taping for the mid-fi market.
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