Grundig TK 247 specifications

Category : Tape machines

Brand : Grundig

Grundig stereo tape recorder TK 247

General

Connections

Tech nical data

Special equipment

Models similar to each other up to 1969 for horizontal operation (TK 245 tubes + Full transistor TK 247):

Models of the vertically usable successor series from 1969 in a completely new design, technically higher quality (e.g. 3 sound heads):

• Manufacturer: Grundig -Radiowerke mbH, Fürth
• Model: TK 247 de Luxe
• Type : Case coil tape recorder for horizontal operation with built-in stereo speakers
• Years of construction: 1967 - 1969
• Manufactured in: Nuremberg
• Color: metallic gray
• Remote control: no
• Power supply: 110V-240V, 50Hz (60 Hz with conversion kit)
• Power consumption: 50 W
• Dimensions (W x H x D): 450 x 200 x 340 mm
• Weight: 13.5 kg
• New price approx.: Org. Invoice JAN 1968 for 598,- DM

• Number of outputs: 3
  • Amplifier 2x 800 mV/22kΩ
  • Headphone/amplifier monitoring DIN
  • Loudspeaker 2x 4Ω (addition or replacement of the 4 built-in loudspeakers)

Amplifier 2x 800 mV/22kΩ
• Headphone/amplifier monitoring DIN
• Speaker 2x 4Ω (addition or replacement of the 4 built-in speakers)

• Number of inputs: 3
  • Micro 2x 1...250 mV at about 100 kΩ
  • plate 2x 30 mV...7.5V an1 MΩ
  • Radio 2x 1...250 mV at about 32 kΩ

• Micro 2x 1...250 mV at about 100 kΩ
• plate 2x 30 mV...7.5V an1 MΩ
• Radio 2x 1...250 mV at about 32 kΩ

• Max. Coil diameter: 18 cm
• Drive: 1 motor, friction wheel drive, Fast forward/rewind by belt drive
• Heads: 2 heads (extinguishing head and combination recording/playback head)
• Tracks: 4 (quarter track)
• Tape speeds: 9.5/19 cm/s
• Rewind time: approx. 270 sec. for LS-band 18cm coil
• (synchronisation fluctuations):
• Pitch fluctuations:
  • ≤ ± 0,15 % at 9.5cm/s
  • ≤ ± 0,12 % at 19 cm/s
• Total frequency response:
  • 40 – 12,500 Hz at 9.5 cm/s
  • 40 – 16,000 Hz at 19 cm/s
• Dynamics:
  • ≥ 47 dB at 9.5 cm/s
  • &# 8805; 48 dB at 19 cm/s

• ≤ ± 0,15 % at 9.5cm/s
• ≤ ± 0,12 % at 19 cm/s

• 40 – 12,500 Hz at 9.5 cm/s
• 40 – 16,000 Hz at 19 cm/s

• ≥ 47 dB at 9.5 cm/s
• ≥ 48 dB at 19 cm/s

• Stereo power amplifier of 2x 4 W / 5.5 W with 4 loudspeakers (2 per channel)
• Automatic STOP at the end of the band

• The TK 247 and the TK 241 (mono) were the only fully transistor devices from the 200 series until 1969
• The design is similar to the Grundig TK 245; it is 4 cm wider (more Speakers) and the level controllers are rearranged

• Special features: The automatic recording level control of the TK 245 has been dispensed with

• Both stereo channels are controlled together via a controller

• It does not quite meet the HI-FI standard DIN-45500, which was co-developed by Grundig and is effective as a HIFI for all suitable devices was printed on; neither by the TK 245, nor by the TK 247, even if both devices are certified to have a high fidelity of sound. Nevertheless, sellers are happy to misleadingly offer both types as HIFI stereo tape recorders.

• Note: the mains selector switch has been delivered to 220 volts. Since 1987, however, the power grid has had 230 volts and the selector switch should be switched to 240 volts with a coin (photo) - to protect the device

• Grundig TK 245
• Grundig TK 247

• Grundig TK 244
• Grundig TK 246
• Grundig TK 248

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