RFT KB 100 specifications

Category : Tape machines

Brand : RFT

RFT tape case KB 100

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Tech nical data:

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• 2 Comments
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• Manufacturer: RFT - VEB Funkwerk Leipzig
• Model: KB 100
• Years of construction: from ca 1959
• Manufactured in: DDR
• Color: Bakelite
• Remote control: no
• Power consumption: 50 VA
• Dimensions: 360 mm × 300 mm × 160 mm
• Weight approx.: 13 kg
• Factory price approx.: 1,000 DDR mark

• Number of outputs:

• Number of inputs:

• Tube device: Mono
• max. Coil diameter: 15 cm
• Drive: 1 motor, external rotor (high torque)
• Heads: 1 × quenching/ 1 × sound head, moderate quality
• Tracks: half track Mono
• Tape speeds: 2 (4.75 and 9.5 cm/s)
• Synchronisation fluctuations: 0.3 %
• Pitch variations:
• Total frequency response: max 50-8,000 Hz at 4.75 cm/s, 50-12,000 Hz at 9.5 cm/s
• Signal noise distance: 45 dB
• External voltage distance:
• Total harmonic distortion: 5 %
• Equalization:
• Crosstalk attenuation:
• Cancellation attenuation: max. 40 dB
• Pre-magnetization and quenching frequency: 60 kHz

• Excel lent winding and reproduction properties due to the special drive motor.
• With a jack on the tonal shaft, you could upgrade this TB to 9.5 – 19 HW

• Problems with modern tape material, min. 35 µm BASF ~ er (tape pull)
• The buttons jumped through the area due to the "rough mechanics"!
• Of course, the TBs produced were not enough for EVERYONE!! Who really wanted -
• even got one in the Merseburg RFT store!HW

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