1.0 Technical Specifications
1.1 STANDARD MODEL
I)
'7 SI
Power requirements:
240/230/115 V, 50 Hz, or 240/230/115 V, 60 Hz. See circuit diagram concerning wiring
of motor and transformer for operation on various voltages.
Power consumption:
50 W.
Motor:
2-pole, asynchronous shadow-pole.
Tape speeds:
7
1
/
2
, 3
3
% and 1
7
/
8
ips for series 15. Series 14 has the two lowest speeds only.
Speed tolerance:
± 1.5 °h.
Winding times:
1
2
/
3
minutes for 1200 ft reels, 2
1
/
2
minutes for 1800 ft reels.
Tape:
Machines below serial number 2 619 561 for Series 14 and 2 515 502 for Series 15
are adjusted for standard tape. Later units are adjusted for recording on Low
Noise tape.
Reel size:
7" maximum.
Number of tracks:
2 or 4.
Heads:
1 erase head, 1 combined record/playback head.
Bias:
Conventional.
Erase- and Bias
frequency:
85.5 kHz ± 2 kHz. Distortion less than 0.5 Vo.
Indicator:
Moving coil meter for peak indication of record level. Illuminated in record mode.
Counter:
Indicates revolutions of take up turntable. Push-button reset.
Speaker:
Internal speaker 4" x 7".
Output power:
Maximum 10 W from output amplifier. Can be utilized only in external 4 ohm
speaker. Maximum power supplied to internal speaker: 5 W.
Inputs:
MIC:
For dynamic microphone with impedance less than 600 ohm. Sensitivity
0.1 mV. Maximum signal 10 mV.
Outputs:
RADIO: For recording from radio. Impedance 100 kohm. Sensitivity 10 mV. Maxi-
mum signal 1 V. DIN socket and phono socket in parallel.
P.U.:
For record player with crystal or ceramic pick up. Impedance 1 Mohm.
Sensitivity 100 mV. Maximum signal 10 V. DIN socket and phono socket in parallel.
PRE-AMP.: For playback through external amplifier. Minimum load impedance
20 kohm. Output voltage 0.9 V. DIN socket.
FREE HD: For connection of Tandberg Tape Slide Synchronizer Model 2 or 3.
Minimum load impedance 20 kohm. Phono socket.
EXT SPKR: Maximum output power 10 W obtained for 4 ohm load (including inter-
nal speaker). DIN- socket and phone jack in parallel.
Transistors:
20.
2
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