Model:900 series (910/960)
Country of Manufacture:USA
Release dates:1959 - 1962
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 2 dB): 7½ ips: 50Hz to 15kHz
Wow and Flutter:less than 0.25% at 3¾ and 0.2% at 7½ ips
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
First released in 1959,
the Model 910 Universal “A” was a two-speed (7½ &
3¾ ips) tape deck with a single motor and three heads. It was a
development of the 1956 “A” series.
Stereo playback (both half and quarter-track) was possible but the machine
only recorded in mono.
Matched 10 watt speaker/amplifier units (model 2010) were available,
fitted with an Ampex-designed 8″ PM speaker.
In early 1960, the Model 960 appeared, physically identical to the 910
but with full stereo record and playback facilities. Both machines had
a 7″ reel capacity, auto end-of-tape stop, single VU meter and high
impedance mic and line inputs with input mixing.
By 1963 the 900 series had evolved into the
1200 series and finally, the F-44 Fine
Line series in 1964.
Rewind speed: less than 90 seconds for1200ft / Inputs: high impedance microphone, high impedance radio / line / Outputs: 0.5V RMS from cathode follower / Dimensions: 17½ x 15 x 9″ (445 x 381 x 229 mm) / Weight: 38 lbs ( 17.3 kg) / quarter-track stereo