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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 159

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Technical Details

Brand: Roberts


Category:Mid High Fidelity


Electronics:Solid State

Country of Manufacture:USA

Release dates:1963 - 1966

Tracks:1/4 Rec/PB+1/2PB

Speeds: 3 3/4, 7 1/2, 15

Max Reel Size("): 3"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: full-track-mono

Voltage(s): 110-120v

Frequency Response:(±2dB): 7½ ips: 40Hz -15kHz

Wow and Flutter:less than 0.12 % at 7½ips

Signal-to-Noise Ratio:-50db

Sound quality rating:5 / 10

Long-term reliability rating: 5/ 10

Additional Details


Unlike some of the earlier Roberts machines, the 997 didn’t appear to have an exact equivalent Akai counterpart, however it does appear to be something of a hybrid between the M-6 & M-7.
It featured twin VU meters, stacked amplifiers, mute monitor speaker switch, horizontal or vertical operation, in-built speakers with deflectors, inputs for stereo
record changer and AM/FM stereo tuner as well as microphones, auto shut-off and three tape speeds (up to 15 ips).
Drive was via a single 24-slot high-torque hysteresis-synchronous motor with a dynamically-balanced rotor & flywheel.
Price when new was $449.95

Additional Info

Cross-talk: 80 db at 1kHz / Valve complement: 2 x 6267 (EF86), 2 x 12AD7, 2 x 6BQ5, 1 x 6AR5, 2 x 6X4 / Rewind speed: 2½  minutes for 1,200 ft reel / Audio output power: 6 watts per channel / Inputs: Low level high impedance mic input, high level line input / Outputs: High impedance head output, 8 / 16 ohm amplifier output / Speaker(s): 2 x 8″ coaxial extension speakers (optional) / Dimensions: 14 x 20 x 9″ (356 x 508 x 229 mm) / Weight: 50 lbs (22.72 kg) / quarter-track stereo


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