Grundig TK 747 specifications

Category : Tape machines

Brand : Grundig

General

connectors

Tech nical data

special features

accessories

  • manufacturer: Grundig AG, Fürth, Germany
  • model: TK 747 Hifi
  • type: tape-case
  • year of construction: 1975 - 1977
  • Made in: Fürth, Germany
  • color: Black
  • remote control: Foot switch 255 for Start/ Stop
  • power supply
    • TK 747: 110 V, 220 V AC, 50 Hz
    • TK 747 U: 110 V, 120 V, 220 V, 240 V, AC, 50 Hz/ 60 Hz
  • power consumption: 55 Watt
  • dimensions: 500 x 152 x 310 mm (BHT)
  • weight: 12.0 kg
  • factory price approx.: 950 DM
  • TK 747: 110 V, 220 V AC, 50 Hz
  • TK 747 U: 110 V, 120 V, 220 V, 240 V, AC, 50 Hz/ 60 Hz
  • number of outputs:
    • DIN: 2 x amplifier (with input Radio combined) 800 mV at 20 kΩ
    • DIN: 2 x speaker 7 W 4 Ω (music performance)
    • DIN: 1 x earphone (square plug) 2 V at 100 Ω
  • number of inputs:
    • DIN: 2 x 1 – 100 mV at 100 kΩ
    • DIN: 2 Radio 3 – 300 mV at 30 kΩ
    • DIN: 2 x Phono100 – 10,000 mV at 1 MΩ
  • DIN: 2 x amplifier (with input Radio combined) 800 mV at 20 kΩ
  • DIN: 2 x speaker 7 W 4 Ω (music performance)
  • DIN: 1 x earphone (square plug) 2 V at 100 Ω
  • DIN: 2 x micro-1 to 100 mV at 100 kΩ
  • DIN: 2 Radio 3 – 300 mV at 30 kΩ
  • DIN: 2 x Phono100 – 10,000 mV at 1 MΩ
  • max. Coil diameter: 18 cm
  • drive: 1 Motor, belt drive
  • heads: 3, 1 x record, 1 x playback, 1 x Erase
  • tracks: 4 (quarter-track)
  • belt speeds
    • 4.75 cm/ s, 9.5 cm/ s, 19 cm/ s
  • slip:
  • flutter:
  • Pitch changes:
    • 4.75 cm/ s ≤ ± 0,2 %
    • 9.5 cm/ s ≤ ± 0,12 %
    • 19 cm/ s ≤ ± 0,07 %
  • total frequency response:
    • 4.75 cm/ s: 30 Hz – 8,000 Hz
    • 9.5 cm/ s: 30 Hz – 15,000 Hz
    • 19 cm/ s: 30 Hz – 18.000 Hz
  • signal-to-noise ratio:
  • s / n ratio:
  • signal-to-Noise ratio:
    • 4.75 cm/ s: > 57 dB
    • 9.5 cm/ s: > 60 dB
    • 19 cm/ s: > 62 dB
  • THD:
  • equalization:
  • Crosstalk:
  • delete damping:
  • premagnetization and deletion frequency:
  • Transistors
    • 29 silicon, 4 Germanium, 1 field effect transistor
  • Diode
    • 20 silicon, 1 ten-diode, 1 rectifier
  • Backups
    • 5 x 20 mm; 2 x 1 A slow-blow; 1 x 0.8 A slow-blow
  • total playing time for a full spool 18 cm ø Mono
    • long-playing tape
      • 4.75 cm/ s ∼ 12 hours, 9.5 cm/s ∼ 6 hours, 19 cm/s ∼ 3 hours
    • 640 m Duoband
      • 4.75 cm/ s ∼ 14 hours, 9.5 cm/s ∼ 7 hours, 19 cm/s ∼ 3.5 hours
    • 730 m Duoband
      • 4.75 cm/ s ∼ 16 hours, 9.5 cm/s ∼ 8 hours, 19 cm/s ∼ 4 hours
  • Time
    • approx. to 255 sec. at Duoband 730 m on spool 18
  • automatic
    • level, and switch Off at the end of the tape
  • 4.75 cm/ s, 9.5 cm/ s, 19 cm/ s
  • 4.75 cm/ s ≤ ± 0,2 %
  • 9.5 cm/ s ≤ ± 0,12 %
  • 19 cm/ s ≤ ± 0,07 %
  • 4.75 cm/ s: 30 Hz – 8,000 Hz
  • 9.5 cm/ s: 30 Hz – 15,000 Hz
  • 19 cm/ s: 30 Hz – 18.000 Hz
  • 4.75 cm/ s: > 57 dB
  • 9.5 cm/ s: > 60 dB
  • 19 cm/ s: > 62 dB
  • 29 silicon, 4 Germanium, 1 field effect transistor
  • 20 silicon, 1 ten-diode, 1 rectifier
  • 5 x 20 mm; 2 x 1 A slow blow; 1 x 0.8 A slow-blow
  • long-playing tape
    • 4.75 cm/ s ∼ 12 hours, 9.5 cm/s ∼ 6 hours, 19 cm/s ∼ 3 hours
  • 640 m Duoband
    • 4.75 cm/ s ∼ 14 hours, 9.5 cm/s ∼ 7 hours, 19 cm/s ∼ 3.5 hours
  • 730 m Duoband
    • 4.75 cm/ s ∼ 16 hours, 9.5 cm/s ∼ 8 hours, 19 cm/s ∼ 4 hours
  • 4.75 cm/ s ∼ 12 hours, 9.5 cm/s ∼ 6 hours, 19 cm/s ∼ 3 hours
  • 4.75 cm/ s ∼ 14 hours, 9.5 cm/s ∼ 7 hours, 19 cm/s ∼ 3.5 hours
  • 4.75 cm/ s ∼ 16 hours, 9.5 cm/s ∼ 8 hours, 19 cm/s ∼ 4 hours
  • approx. to 255 sec. for Duoband 730 m on coil 18
  • Modulation and switching off at the end of the tape
  • Horizontal/vertical operation, "keyholes" for hanging on the wall
  • Tape tension control
  • Integrated stereo amplifier with two loudspeakers
  • Smoked glass hood
< ul>
  • Remote control: Foot switch 225 for start/stop during recording/playback
  • Retrofit kit 137: "Slide slide" socket, connection of a control unit for slide/narrow film projection
  • Sonodia 272 a in connection with retrofit kit 137 for controlling the projector when setting slide series to music
  • Retrofit kit 132 for converting the device to 60 Hz
  • Stereo Microphone
    • GCMS 332 Stereo Condenser Microphone
  • Mono Microphones
    • GCM 319 Condenser Microphone
    • GDM 308 Dynamic switching microphone for start/stop remote control during recording/playback
    • GDM 314
    • < li>Windscreen 404 for mono microphones during close calls
  • Microphone extension cable
    • Type 267 with intermediate transmitter, 10 m long
    • type 268 without intermediate transmitter, 10 m long
    • Type 274 for GDSM 331, 10 m long
    • Type 291 for GCM 319 and GCMS 332, 10 m long< /li>
  • Stereo Mixer 422
    • GCMS 332 Stereo Condenser Microphone
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