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| − | __NOTOC__
| + | {{Nicht vorlagenkonform}} |
| − | == Data ==
| + | Erstes Gerät nur mit Transistoren , Bauweise wie TK 245 |
| − | '''''Grundig Stereo Tape Recorder TK 247'''''
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| − | {{navigation}} | |
| − | '''General'''
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| − | * Manufacturer: [[Grundig|Grundig-Radiowerke mbH, Fürth]]
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| − | * Model: TK 247 de Luxe
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| − | * Type: Suitcase reel-to-reel tape recorder for horizontal operation with built-in stereo loudspeakers
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| − | * Years of manufacture: 1967-1969
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| − | * Manufactured in: Fuerth
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| − | * Color: metallic grey
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| − | * Remote control: no
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| − | * Power supply: 110V-240V, 50Hz (60 Hz with conversion kit)
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| − | * Power consumption: 50 W
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| − | * Dimensions (W x H x D): 450 x 200 x 340 mm
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| − | * Weight: 13,5 kg
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| − | * Original price approx.: Org. invoice JAN 1968 for 598,- DM
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| − | '''Connections'''
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| − | * Number of outputs: 3
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| − | ** amplifier 2x 800 mV/22kΩ
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| − | ** Headphone/amplifier monitoring control DIN
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| − | ** Loudspeaker 2x 4Ω (supplement or replacement of the 4 built-in loudspeakers).
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| − | | |
| − | * Number of inputs: 3
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| − | ** Micro 2x 1...250 mV at approx. 100 kΩ.
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| − | ** Plate 2x 30 mV...7.5 V at1 MΩ
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| − | ** Radio 2x 1...250 mV at approx. 32 kΩ
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| − | | |
| − | | |
| − | '''Technical Data'''
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| − | * Max. Coil diameter: 18 cm
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| − | * Drive: 1 motor, friction wheel drive, fast forward/reverse by belt drive
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| − | * Heads: 2 heads (erasing head and combined recording/playback head)
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| − | * Tracks: 4 (quarter track)
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| − | * Tape speeds: 9.5/19 cm/s
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| − | * Rewind time: approx. 270 sec. with LS tape 18cm reel
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| − | * (synchronisation fluctuations):
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| − | * Pitch fluctuations:
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| − | ** <= +- 0.15 % at 9.5 cm/s.
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| − | ** <= +- 0.12 % at 19 cm/s
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| − | * Overall frequency response:
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| − | ** 40 - 12,500 Hz at 9.5 cm/s
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| − | ** 40 - 16,000 Hz at 19 cm/s
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| − | * Dynamic range:
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| − | ** >= 47 dB at 9.5 cm/s
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| − | ** >= 48 dB at 19 cm/s
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| − | | |
| − | | |
| − | '''Special Features'''
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| − | * Stereo power amplifier of 2x 4 W / 5,5 W with 4 speakers (2 per channel)
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| − | * Automatic STOP at the end of the tape
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| − | | |
| − | == Remarks ==
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| − | The TK 247 and the TK 241 (mono) were the only fully transistorized units from the 200 series until 1969.
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| − | The design is similar to the [[Grundig TK 245]], is 4 cm wider (more speakers) and the level controls
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| − | are newly arranged.
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| − | | |
| − | Special features: The automatic recording tuning out of the TK 245 was omitted.
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| − | | |
| − | Both stereo channels are controlled together via ONE control.
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| − | Note: the mains selector switch was supplied for 220 volts. Since 1987, however, the mains supply has been 230 volts, and the selector switch should be changed to 240 volts with a coin (photo) - to protect the unit.
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| − | | |
| − | | |
| − | == Other models for comparison ==
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| − | '''Models similar to each other until 1969 for horizontal operation (tubes TK 245 + full transistor TK 247):'''
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| − | * [[Grundig TK 245]]
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| − | * [[Grundig TK 247]]
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| − | | |
| − | '''Models of the vertically usable successor series from 1969 in a completely new design, technically of higher quality (e.g. 3 tone heads):'''
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| − | * [[Grundig TK 244]]
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| − | * [[Grundig TK 246]]
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| − | * [[Grundig TK 248]]
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| − | | |
| − | | |
| − | == Pictures ==
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| − | [[File:247_240V.jpg|center|mini|240V_einstellen]]
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| − | | |
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| − | == Reports ==
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| − | == Links ==
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| − | [[Category:Tape machines]]
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