UHER SG 631 LOGIC
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Type: | Tape Recorder |
Track System: | 4-track / 2-track stereo |
Tape Speeds: | 19.05 cm / s, 9.5 cm / s, 4.75 cm / s |
Counter: | 4-digit, with zero reset button and automatic foil shut-off device |
Reel Size: | 27cm (10.5”) |
Motors: | For Capstan drive - Collector less, electronically controlled motor x 1 For Reel drive - D.C. hub motor x 2 For Forming - Servo motor x 1 |
Input Sensitivity / Impedance: | 0.1 - 80mV / 2kΩ (Microphone) 1 - 200mV / 20kΩ (Radio) 80mV - 8V / 68kΩ (Line) |
Output Level / Impedance: | Approx. 750mV / 15kΩ (Radio) Approx. 750mV / 15kΩ (Monitor) 1.7V / 120Ω (Headphones) |
Power Amplifiers: | Stereo headphones power stage with volume control |
Record Level Indication: | Moving-coil peak-reading meter |
Overall Frequency Response: | 20Hz to 10kHz (4.75 cm / s) 20Hz to 16kHz (9.5 cm / s) 20Hz to 25kHz (19.05 cm / s) |
Harmonic Distortion (At 333Hz and 19 cm / s): | Better than 60dB |
Crosstalk (At 1kHz in Stereo Operation): | Better than 45dB |
Crosstalk (At 1kHz in Two-Direction Stereo Operation): | Better than 60dB |
S / N Ratio (4-track / 2-track, Ref 0dB, Unweighted): | 19.05 cm / s - 56dB / 58dB 9.5 cm / s - 55dB / 57dB 4.75 cm / s - 53dB / 54dB |
S / N Ratio (4-track / 2-track, Ref 0dB, “A” Weighted): | 19.05 cm / s - 65dB / 68dB (DIN) 9.5 cm / s - 64dB / 67dB (DIN) 4.75 cm / s - 63dB / 67dB (DIN) |
Wow and Flutter: | Max. 0.05% (19.05 cm / s) Max. 0.1% (9.5 cm / s) Max. 0.2% (4.75 cm / s) |
Max. Speed Deviation (Mid-Spool at 19 cm / s): | ±1.5% Adjustable to 0% with fine regulator; Stroboscope discs 50Hz and 60Hz for optical control |
Erasure: | Better than 72dB |
Bias and Erasure Frequency: | 100kHz |
Attenuating Effect on One Track upon Erasure of Other: | Less than 1dB (At 15kHz, 19 cm / s) |
Semiconductors used: | Transistors x 111 (Including 13 FET’s) IC’s x 19 Diodes and Rectifiers x 143 |
Power Supply: | AC 110 / 130V, 220 / 240V, 50 / 60Hz |
Dimensions (W x H x D): | 510 x 400 x 146mm |
Weight: | 13kg |
