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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 7 / 10 Views: 345

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Technical Details

Brand: Akai




Electronics:Solid State


Country of Manufacture:Japan

Release dates:1965 - 1969

Original Price: $440

Tracks:1/4 Rec/PB

Speeds: 1 7/8, 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 3

Dimension: 13½" x 13½" x 9" (343 x 343 x 230mm)

Head Composition: Permalloy

Head Configuration: Stereo

# Motors: 1

Voltage(s): 110-120v

Outputs: RCA

Frequency Response:( 3 dB): 7½ ips: 30 to 23kHz

Wow and Flutter:less than 0.12% at 7½ ips

Signal-to-Noise Ratio:better than 50dB

Sound quality rating:5 / 10

Long-term reliability rating: 7/ 10

Weight: 30.8 lbs (14kg)

Additional Details


A cross-field head quarter-track stereo tape deck (no inbuilt amplifiers or speakers) featuring three speeds, three heads and a hysteresis synchronous 2-speed motor.
Around about this time Akai began to differentiate between recorders (with full audio output stages) and tape-decks only with the “D” suffix denoting the latter.
Like all the preceding Akai models the 150D utilized the same 2-lever control system and a removable capstan sleeve to get three playing speeds from the two-speed motor.
An optional fourth speed of 15 ips was available on request and implemented by using a larger capstan sleeve along with a smaller pinch roller.

Additional Info

Price when new (U.S.A.)
$440.00 (1969)
three: erase, record/playback and Crossfield bias
single hysteresis synchronous 2-speed motor
Tape speeds
7½ , 3¾ & 1 7/8 ips (15 ips optional with replacement capstan & pinch roller)
Frequency response (3 dB)
7½ ips: 30 to 23kHz
3¾ ips: 30 to 18kHz
1 7/8 ips: 30 to 9kHz

Semiconductors: 11 silicon transistors and 2 diodes.


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