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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 191

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Technical Details

Brand: Tandberg

Model:Model 4

Category:Vintage

Application:Consumer

Electronic:Tube

Country of Manufacture:Norway

Release dates:1959 - 1962

Tracks:

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

Max Reel Size("): 7"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors:

Voltage(s): 220-240v

Frequency Response:(all 3 dB): 7½ ips: 40Hz - 16kHz

Wow and Flutter:< 0.15 % at 7½ ips . < 0.2 % at 3¾ ips. < 0.8 at 1 ips

Signal-to-Noise Ratio:

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details

Description

Following the success of their model 3, Tandberg released the quarter-track Model 4 in early 1959.
It had three heads and a bass boost switch and was in fact very similar
to the model 5 except that the 5 had a stereo playback amplifier.
The Model 4 required an external amplifier for stereo playback although
it had an integrated equalised pre-amp for the second channel, allowing
any ‘non-equalised’ amp such as a radio) to be used. (Later models, like
the 84, 94, 14 and 15 only gave a direct ‘free head’ output so the external
amplifier needed to have its own playback equalisation).

Additional Info

Speed tolerance: 1.5% / Bias frequency: 67 kHz / Valve complement: 2 x ECC83, EF804, EL84, EM71, 2 selenium rectifier, selenium diode / Rewind speed: 2 minutes / Audio output power: 3 watts / Dimensions: 15   x 11½ x  6½” (381 x 292 x 165 mm) / Weight: / half-track mono (stereo playback with external amp)

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