Tape Recorder - Båndopptaker Series 12 12-41 50 Hz, 220 Volt

Tandberg Radio; Oslo

Data
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  • Year
  • 1966–1968
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 71446

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 2
  • Number of Transistors
  • 35
  • Main principle
  • Audio-Amplification
  • Details
  • Tape Recorder
  • Power type and voltage
  • Alternating Current supply (AC) / 50 Hz, 220 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Power out
  • 20 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Tape Recorder - Båndopptaker Series 12 12-41 [50 Hz, 220 Volt] - Tandberg Radio; Oslo
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 390 x 175 x 300 mm / 15.4 x 6.9 x 11.8 inch
  • Notes

  • Tandberg Series 12 Four-Track Teak or rosewood cabinet

    Tape speed:
    7½, 3¾ and 1⅞ inches per second. The amplifiers are equalized to conform with NAB standards
    Playing time:
    Four-track recordings on 1200 ft. of tape
    Tape Speed:
    Tape speed 7½ i.p.s.: Stereo 32 min. Mono 2 x 32 min
    Tape speed 3¾ i.p.s.: Stereo 64 min. Mono 2 x 64 min
    Tape speed 1⅞ i.p.s.: Stereo 128 min. Mono 2 x 128 min
    Fast wind and rewind:
    The fast wind or rewind of 1200 ft. of tape takes approx. 2 minutes
    Recording tape:
    Maximum reel diameter 7". Good quality recording tape is recommended
    Frequency response:
    7½ i.p.s. 30-20.000 Hz (+/-2 dB 40-16.000 Hz
    3¾ i.p.s. 30-13.000 Hz (+/-2 dB 50-10.000 Hz
    1⅞ i.p.s. 30-7.000 Hz (+/-2 dB 60-5.000 Hz
    In AMPLIFIER position: +/- 2 dB 30-16.000 Hz
    Distortion:
    The distortion from the record amplifiers is less than .5%.
    The distortion from the playback amplifiers is less than .5%.
    Wow and flutter:
    Better than .1% at 7½ i.p.s tape speed
    Better than .15% at 3¾ i.p.s tape speed
    Better than .25% at 1⅞ i.p.s tape speed
    Erase and bias frequency:
    The erase and bias frequency is 85.5 kHz. The even harmonic distortion in the bias current is less than .5%.
    Recording level indicator:
    The electronic beam indicators are equipped with damping circuits. The indicator range is 25 db, plus overload.
    The indicators are closing at optimum recording level (5% distortion from the tape).

    Inputs:

    2 Microphone inputs (ch. 1 and ch. 2): Impedance: 200 ohms unbalanced. Sensitivity: 150uV. Dynamic range +40 db
    2 Line inputs (ch. 1 and ch. 2):
    HIGH LEVEL: Impedance; 1 Mohm. sensitivity: 75 mV. Dynamic range +40 db. Contact: Phono contacts and DIN connector marked CR PHONO (pin No. 3 and 5).
    LOW LEVEL: Impedance; 100 kohm. sensitivity: 7.5 mV. Dynamic range +40 db. Contact: Phono contacts and DIN connector marked RADIO (pin No. 1 and 4).
    FM-Multiplex inputs:
    The model 12 tape recorder is furnished with a FM-Multiplex switch which switches the multiplex filter in or out.

    Outputs:

    Playback Preamplifier output:
    Internal impedance is 5 kohms. Open circuit output voltage 750 mV, independent of the settings of all switches and controls during playback. Two phono contacts (ch. 1 and ch. 2) are furnished for connection to external power amplifier.
    Low Impedance output:
    External impedance is 4ohms. Two standard telephone jacks (ch. 1 and ch. 2) in parallel with two DIN loudspeaker contacts are furnished for connection to external loudspeakers.
    Centre Channel output:
    Impedance is 82 ohms from each amplifier. Output voltage in record position is 750 mV open circuit. One standard telephone jack in parallel with one DIN loudspeaker contact are furnished for connection to headphones.
    Power output:
    Maximum output power is 10 watts in each channel. Two standard telephone jacks (ch. 1 and ch. 2) in parallel with two DIN loudspeaker contacts are furnished for connection to external speakers.

    Speakers:
    2 x 7" x 4"

    Solid state devices listed once per type.

    See also 115 volt 60 Hz version

  • Net weight (2.2 lb = 1 kg)
  • 10.5 kg / 23 lb 2 oz (23.128 lb)
  • Price in first year of sale
  • 1,795.00 NKr.
  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Ernst Rykkje. See "Data change" for further contributors.

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