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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 190

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Technical Details

Brand: Grundig

Model:TK 400 Automatic

Category:Mainstream

Application:Consumer

Electronic:Solid State

Country of Manufacture:Germany

Release dates:1970-1970

Tracks:1/4 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors:

Voltage(s): 220-240v

Frequency Response:(+3dB -5dB): 7½ ips: 40Hz - 16kHz

Wow and Flutter:0.2 %

Signal-to-Noise Ratio:

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details

Description

Based
on the same mechanical system as the TK 200, the TK 400 Automatic was,
as its name suggest, a fully automatic recorder.
Speeds of 3¾ and 7½ ips were provided
on this quarter-tack mono machine and spools of up to 7″ could be
accommodated.
Only one recording input was provided, with
an Automatic Gain Control (AGC) and a ‘Speech/Music’ switch giving automatic
recording level (hence the lack of any recording level indicator. In its
place, Grundig provided a three-digit position indicator. A single lever
at the front of the machine provided a unique variable wind-rewind function.
(The AGC system and this variable wind control are described in greater
detail in the 1966 Test Report reproduced below).
Power output was 4 watts into a 3¾ x 4½
speaker.
Even at £49 7s the TK 400 sold poorly
in the UK and I have heard that mechanically, both it and the TK 200 were
not up to Grundig’s usual standard.

Additional Info

Distortion: 5% maximum / Valve complement: EF86, EF83, ECC81, ECL86, 1 rectifier and 1 diode / Audio output power: 4 watts / Inputs: single input, 2.2 - 45mV across 1.5Mohm / Outputs: external speaker 3-7 ohms, high impedance 700mV / 15Kohm / Speaker(s): 1 x high flux permanent magnet moving coil 3¾ x 4½" / Dimensions: 13¾ x 11½ x 7" (349 x 292 x 178 mm) / quarter-track mono

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