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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 454

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Technical Details

Brand: Truvox


Category:Mid High Fidelity


Electronics:Solid State


Country of Manufacture:United Kingdom

Release dates:1964 - 1967

Tracks:1/2 Rec/PB

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

Max Reel Size("): 7"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Stereo - Stacked

# Motors: 3

Auto Reverse?:No

Voltage(s): 220-240v

Frequency Response:(all 3 dB): 7½ ips: 40Hz - 17kHz

Wow and Flutter:(better than) 0.1% at 7½ ips, 0.15% at 3¾ ips and 0.25% at 1 ips

Signal-to-Noise Ratio:better than 50dB

Sound quality rating:5 / 10

Long-term reliability rating: 5/ 10

Additional Details


Truvox was one of the first British firms to produce domestic recorders in the early days following the Second World War.
The 1964 series 90 covered a full range of recorders and decks including quarter and half-track machines, both monophonic and stereo.  Pictured here is the R92 half-track mono recorder.
Common features to all series 90 machines were: piano key operation, a cathode follower output, recording level meter, positive lock reel carriers, 4 digit counter, hinged editing panel, input mixing facilities, sound-on-sound, 3 tape speeds, three motor drive with Papst capstan motor, horizontal operation and forward-facing  Rola-Celestion loudspeaker (R92 &
R94 only).

Additional Info

Hum and noise: less than 45dB / Bias frequency: 62 KHz / Valve complement: EF86, ECC81, ECC83, ECC82 (oscillator), ECL86 and an EC25 metal rectifier / Rewind speed: 55 seconds for 1,200ft / Audio output power: 4 watts into 15 ohms / Inputs: microphone: 1.4 mV at 2.2Mohms. radio / P.U: 150 mV at 500Kohms / Outputs: cathode follower to ext. amp 100 ohms, output voltage variable to 1V / Speaker(s): 8″ x 5″ hyperbolic cone, high flux / Dimensions: 16½ x 17¾ x 8½ ” (419 x 452 x 216 mm) / Weight: 35 lbs (15.9 kg) / see text


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