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Sound Rating: 7 / 10 # Owners: 1
Relaibility Rating: 7 / 10 Views: 128

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Technical Details

Brand: Berlant





Country of Manufacture:USA

Release dates:1955 - 1958

Original Price: $595

Tracks:1/2 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 10.5"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors: 3

Auto Reverse?:No

Voltage(s): 110-120v

Outputs: RCA

Frequency Response:(all 3 dB): 7½ ips: 70Hz - 8kHz

Wow and Flutter:less than 0.1 % at 7½ ips

Sound quality rating:7 / 10

Long-term reliability rating: 7 / 10

Weight: 45lbs (20.5kg)

Additional Details


A remarkable machine for its price with room for up to five heads, making it an extremely versatile
recorder at a time when dual-track, single track, mono and the new “binaural” (stereo) options were all still being used. The head-rack allowed for instantaneous switching of the head configuration.
Available in either 3¾ and 7½ ips or 7½ and 15 ips, the 20/20 was equipped with three heavy duty motors. the tape drive was supplied via a two-speed capacitor-induction motor and two shaded pole motors for take-up and rewind (the latter functioning at 2,400 ft/minute with a lever giving variable control). The tape transport contained no belts and produced less than 0.1% wow and flutter at 7½ ips, even less at 15 ips and reels of up to 10½ inches were catered for.
The tape transport control was a single lever and the machine had an automatic cut-off at the end of the reel or in event of a tape break. Constant and unvarying tape tension was supplied by means of tension arms at each end of the tape path, threading was straight-line and very simple and rapid.

Additional Info

Rewind speed: 2,400 feet per minute / Inputs: 1 microphone 1 line per channel /  single, dual or binaural


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