Akai AT-93
The Akai AT-93 is an AM/FM tuner from the late 1980s, and its paperwork has mostly vanished. No service manual or original literature has surfaced in the archive. What exists is a thorough Equipment Profile in Audio (December 1988, p.131). The reviewer found the AT-93 attractively styled and genuinely capable, with an automatic tuning system that was unusually hard to outsmart.
The Audio reviewer described the AT-93 as automatically optimized. You could let it choose stations and sit back, or take over manually and try to improve on its selections. The wide/narrow IF modes drew particular praise, and the narrow-band parameters were, in the reviewer's words, exactly right (Audio, December 1988, p.138). In wide mode, stereo distortion plus noise at 1 kHz measured a strong 0.095%. The narrow IF setting produced lower distortion than several highly regarded tuners managed in wide mode (Audio, December 1988, p.136).
On the air, the AT-93 pulled in 53 stations. The reviewer could second-guess its choices on only two of them, and it dropped to mono on five weak signals exactly as expected (Audio, December 1988, p.140). The AM section was also singled out for a reasonably flat high-frequency response, which is a rarity.
Known measured figures from the Audio profile (December 1988, p.130):
- S/N: 90 dB mono, 80 dB stereo
- THD at 1 kHz: 0.02% mono wide / 0.08% mono narrow; 0.07% stereo wide / 0.3% stereo narrow
- Alternate-channel selectivity: 60 dB (wide); image rejection 40 dB; IF rejection 60 dB
- Output: 250 mV at 30% modulation
Beyond that review, production years, original price, and dimensions remain undocumented.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Akai AT 2400
- Akai AT 2600
- Akai AT-2650
- Akai AM-93 (1975)
- Akai AM-U-3 (1975)
- Kenwood KR 3200 (1973-1975)
- Kenwood KR 3400 (1977-1979)
- Kenwood KR 4070 (1977-1979)
- Kenwood KR 4200 (1975-1977)
- Marantz 1515 (1976-1978)