View source for Uher SG 630 Logic

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== Data ==
'''General'''
* Manufacturer: [[Uher]]
* Model: SG 630 Logic
* Type: Reel-to-reel tape recorder
* Years of manufacture: 1976 - 1979
* Made in: Germany
* Color: Black
* Type: 3-head reel-to-reel tape recorder 
* Remote control: 
* Power Consumption: 
* Dimensions: 510 x 400 x 146 mm (WxHxD).
* Weight: 13 kg
* Original price approx: 
** Version without Dolby unit: 1'700 DM
Version with Dolby unit: 2'200 DM


'''Connections'''
* Number of inputs: 
** Radio: 1.2 mV to 110 mV, 47 kOhm. 
** Phono (crystal): 40 mV, 1.2 MOhm 
** Microphone: 0.12 mV to 70 mV, 2 kOhm
** Reserve: 200 mV to 18 V, 50 kOhm 
* Number of outputs: 3
** Monitor: 750 mV, 15 kOhm 
** Din: 750 mV, 15 kOhm
** Pre Out: 750 mV, 15 kOhm


'''Technical Specifications'''
* Continuous power (via built-in amplifier).
** 8 Ohm: 
** 4 Ohm: 2 x 6 Watt
* Dynamic power:
** 8 Ohm: 
** 4 Ohm: 
* Reel speed: 4.75 / 9.5 / 19 cm/sec
* Coil diameter: max. 27 cm
* Drive: 3 motors, sound wave direct drive
* Overall frequency response:
** 4.75 cm/sec: 20Hz - 12'500 Hz ± 3 dB.
** 9.5 cm/s: 20Hz - 15'000 Hz ± 3 dB
19 cm/s: 20Hz - 20'000 Hz ± 3 dB
* Synchronization fluctuations:
** 4.75 cm/sec: ± 0.3 %
** 9.5 cm/sec: ± 0.15 %
** 19 cm/sec: ± 0.05 %
* Signal-to-noise ratio 2-track model:
** 4.75 cm/sec: &gt; 63 dB
** 9.5 cm/sec: &gt; 63 dB
19 cm/sec: &gt; 65 dB
* Signal-to-noise ratio 4-track model:
** 4.75 cm/sec: &gt; 61 dB
** 9.5 cm/sec: &gt; 61 dB
19 cm/sec: &gt; 63 dB
* Crosstalk attenuation:
** Mono: 60 dB
Stereo: 45 dB
* Distortion factor:
** 4.75 cm/sec: &lt; 3.0%
** 9.5 cm/sec: &lt; 3.0%
** 19 cm/sec: &lt; 1.5%
* Extinguishing attenuation: &lt; 72 dB
* Premagnetization and erase frequency: 100kHz
* Rewind time: 1'200 m tape in 120 seconds


'''Special Features'''
* Built-in amplifier with 2 built-in speakers
* 2-track / 4-track headstock interchangeable
* Dolby B optional
* Pre- and rearband control
* Limiter
* Fade control
* Cueing switch
* Slide Pilot
* Slide start device


== Remarks ==
* Other models in the same series:
** [[Uher SG 510 Stereo]]
** [[Uher SG 520 Variocord]]
** [[Uher SG 560 Royal]]
** [[Uher SG 561 Royal]]
** [[Uher SG 630 Logic]]



== Pictures ==
* Extract from brochure: Uher SG 630 Logic
[[File:Uher SG-630 Logic-Prospekt-1.jpg]]


== Reports ==


== Links ==


[[Category:Tape machines|Tape machines / tape recorders]]