RFT KB 100

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RFT tape case KB 100

General:

• Manufacturer: RFT - VEB Funkwerk Leipzig
• Model: KB 100
• Years of manufacture: from ca 1959
• Manufactured in: GDR
• Color: Bakelite
• Remote control: no
• Power consumption: 50 VA
• Dimensions: 360 mm × 300 mm × 160 mm
• Weight approx.: 13 kg
• Original price approx.: 1.000 DDR-Mark

Connections:

• Number of outputs:

       Radio etc. "diode socket" MONO
       Loudspeaker: 3 Watt

• Number of inputs:

       Microphone
       Radio

Technical data:

• Tube device: Mono
• max. coil diameter: 15 cm
• drive: 1 motor, external rotor (high torque)
• heads: 1 × erase-/ 1 × sound head, moderate quality
• Tracks: half-track mono
• Tape speeds: 2 (4.75 and 9.5 cm/s)
• Synchronisation fluctuations: 0.3
• Pitch fluctuations:
• Overall frequency response: max 50-8,000 Hz at 4.75 cm/s, 50-12,000 Hz at 9.5 cm/s.
• Signal-to-noise ratio: 45 dB
• External signal-to-noise ratio:
• Distortion: 5%
• Equalization:
• Crosstalk attenuation:
• Cancellation attenuation: max. 40 dB
• Premagnetization and extinction frequency: 60 kHz

Special features:

• Excellent winding and playback characteristics due to the special drive motor.
• With a jack on the tone shaft, this TB could be upgraded to 9.5 - 19.

Notes

• Problems with modern tape material, min. 35 µm BASF~ er (tape tension).
• Due to the "rough mechanics" the buttons jumped around!
• The manufactured TB's were of course not enough for ALL!!! Who really wanted -
• got even one in the Merseburg RFT - shop!