TRACK SYSTEM

4 track 2-channel stereo/monaural system

REEL CAPACITY

Up to 7" reel

TAPE SPEED

7-1/2 and 3-3/4 ips ±0.5%

WOW AND FLUTTER

Less than 0.07% (*0.1%) RMS at 7-1/2 ips
Less than 0.1% (*0.15%) RMS at 3-3/4 ips

FREQUENCY RESPONSE

30 to 26,000 Hz (*30 to 24,000 Hz) ±3 dB at 7-1/2 ips (AKAI S.R.T. Tape)
30 to 24,000 Hz (*30 to 22,000 Hz) ±3 dB at 7-1/2 ips (Regular Tape)
30 to 22,000 Hz (*30 to 19,000 Hz) ±3 dB at 3-3/4 ips (AKAI S.R.T. Tape)
30 to 19,000 Hz (*30 to 18,000 Hz) ±3 dB at 3-3/4 ips (Regular Tape)

SIGNAL TO NOISE RATIO

Better than 50 dB (*48 dB)

DISTORTION

Less than 1.5% (*2%) at 7-1/2 ips 1,000 Hz "0" VU recording
Less than 3% at 3-3/4 ips 1,000 Hz "0" VU recording

CROSS TALK

Better than 70 dB (Monaural)
Better than 45 dB (Stereo)

ERASE RATIO

Better than 70 dB

BIAS FREQUENCY

103 kHz ±5 kHz

BIAS LEAK

Less than -20 VU

HIGH FREQUENCY DEVIATION

(between left and right channel)

Within 3 dB, using a 8,000 Hz 3-3/4 ips recorded tape at 7-1/2 ips

INPUTS Mic input

Line input
Din input

0.7 mV Impedance: 10 kft
70 mV Impedance: 150 kft
7 mV (low) and 70 mV (high)

OUTPUTS Line output

Din output

1.228V(4 ±1.5 dB) Impedance: 100ft, using a 250 Hz "0" VU recorded tape
0.4V

RECORDING CAPACITY

60 min. stereo recording, using a 1,200 ft. tape at 7-1/2 ips

FAST FORWARD & REWIND TIME

68/83 sec, using a 1,200 ft. tape at 60/50 Hz

MOTORS Capstan Motor

Reel Motor

2-speed servo control outer rotor motor

Type: SCM2-24

Revolutions: 520 r.p.m. at 7-1/2 ips

260 r.p.m. at 3-3/4 ips
Two 6-pole eddy current outer rotor motors
Type: 24X0-II
Revolutions: 930 r.p.m. at 50 Hz

1120 r.p.m. at 60 Hz

HEADS

Combination Recording & Erase Head

Playback Head

Type: RE4-1

Gap: 4/x ±15%, 0.2x2 mm

Impedance: 1,800ft at 100 kHz

210ft ±15% at 100 kHz
Type: P4-200
Gap: 1.75m ±15%
Impedance: 3 ±1 kft at 1 kHz

TRANSISTORS

2  . . . 2SA564(R) A ... 2SC454(C)

8 . . . 2SC458LG(B)(C) 16 . . . 2SC711(D)(E)
A ... 2SC87KF) 17 . . . 2SC945(Q)(R)(S)
6 . . . 2SC968(3) 2 . . . 2SC971(2)(3)(red)
1...2SC1013 2 . . . 2SD234(Y)

3  . . . TSC9000-1(B)(C)

DIODES

27 . . . 1N34A 17...10D1
3...10D4 2. . . 10DC-1 (black)
1 . . . lODC-l(red)

IC

2. . . LD-3141

THERMISTORS

1 . . . 1N359A 1 . . . RD9A

VARISTOR

1 . . . TH201

POWER SUPPLY

100 to 240V AC, 50/60 Hz

POWER CONSUMPTION

130 W

INSULATION RESISTANCE

More than 50 Mft

INSULATION DURABILITY

1,000V AC for more than 1 min. duration

DIMENSIONS

445 (W) x 503 (H) x 252 (D) mm (18.2 x 20.5 x 10.3")

WEIGHT

25.5 kg (56 lbs.)