RFT BG 20-6 Smaragd
Data[edit]
RFT Tape Machine BG 20-6 Smaragd
General:
- Manufacturer: RFT Zwönitz
- Model: Smaragd
- Year of manufacture: from ca 1956
- Made in: Germany, GDR
- Color: brown
- Remote control: yes, electric wired
- Power consumption: 250 watts
- Dimensions:
- Weight approx: 20 kg
- New price approx.: 1200 DDR mark
Connections:
- Number of outputs:
- Radio ect. "diode socket" MONO
- Loudspeaker: 2 Watt
- Number of inputs:
- Microphone
- Radio
Technical data:
- Tube device: Mono
- max. coil diameter: 18 cm
- drive: 1 motor, pole-changing, large flywheel mass, 1 × belt drive
- heads: 1 × erase-/ 1 × sound head, moderate quality
- Tracks: half-track mono
- Tape speeds: 2 ( 9.5 and 19 cm/s )
- Synchronisation fluctuations: 0.3
- Pitch fluctuations:
- Overall frequency response: 40-16,000 Hz at 9.5 cm/s, 40-18,000 Hz at 19 cm/s.
- Signal-to-noise ratio: 45 dB
- Spurious signal-to-noise ratio:
- Distortion: 5%
- Equalization:
- Crosstalk attenuation:
- Cancellation attenuation: max 40 dB
- Premagnetization and extinction frequency:
Special features:
- remote control: yes
- electromechanical control
- electric brakes, electric clutches (drive)
- display tube EM 11 - magic eye !
Remarks[edit]
- problems with modern tape material, min 35 µm BASF~ er (tape tension), sound respectable at 19 cm/s
- Other models of the same series:
Pictures[edit]
