Teac A-4070G - Page 3

MECHANICAL
2 SERVICE DATA
Heads:
(Ferrite)
Tape Width:
Tape Speed:
Motors:
Wow and Flutter:
Fast Winding Time:
Operating Position:
Power Requirements:
Weight:
ELECTRICAL
Transistors:
Diodes:
Frequency Response:
Equalization:
Input:
Bias Frequency:
Signal to Noise Ratio:
Stereo Chan.
Cross Talk:
Erase Efficiency:
Separation:
Four track 2 channel stereophonic
Erase/Record combination head x2;
Erase section,
1.8k2/100kHz, erase current approx. 30mA
Record section,
95Q2/1kHz, bias current approx. 25mA
4.7k2/100kHz, signal current approx. 400Hz 200yA
Playback x2;
1.2kQ/1kHz -66dB
Standard 1/4 inch tape
7-1/2ips and 3-3/4ips (40.5%)
4/8-pole dual speed hysteresis synchronous
motor for capstan drive
Two 6-pole eddy current motors for reel drive
0.06% at 7-1/2ips
0.09% at 3-3/4ips
Wow and flutter measured according to weighted
NAB standard using TEAC test tape.
Approx. 120 seconds or less for 1200 feet
Horizontal or vertical
100/117/200/220/240V AC 50/60Hz 125W
51 lbs (23kg) net
2SC733BL x2 2SA494 x2
250733 x14 2SC971 x2
2SC1LOOOBL x12
FR2-02 x3 FR2-10 x2
SIBO2-B x1 FR2-08 x3
FR2-06 x7
Overall from recording INPUT to playback
OUTPUT using SCOTCH #203 tape
7-1/2ips, +3dB 30Hz v20kHz
3-3/4ips, +3dB 40Hzv10kHz
NAB equalization
7-1/2ips 50yu sec
MIC 0.3mV (-70dB)
LINE 0.1V (-18dB)
100kHz push-pull oscillator
7-1/2ips 48dB or higher
3-3/4ips 46dB or higher
at playback to unweighted noise
45dB channel to channel at 1kHz
35dB adjacent track at 100Hz
70dB or more at 7-1/2ips
3-3/4ips 90n sec
These specifications are indispensable information and are required
to service the equipment properly.
They may differ slightly from
those printed in the advertising brochures or the operation manual.