Teac A-7400

Data[edit]

General

  • Manufacturer: Teac
  • Model: A-7400
  • Type: Tape machine
  • Years of manufacture: 1974 - 1978
  • Made in: Japan
  • Color: silver / black, side panels wood
  • Remote control: yes, cable remote control RC-170
  • Power consumption: 90 W
  • Dimensions (WxHxD): 470 x 548 x 246 mm
  • Weight: 28 kg
  • Original price approx.: 298'000 Yen (Japan, 1974), 4'500 DM
  • New prices accessories:
    • Cable remote control RC-170: 10,500 Yen, 160 DM


Connections

  • Inputs:
    • Microphone: 0.25 mV (0.6-10 K-ohms) -.
    • Line: 100 mV (50 K-Ohm)
  • Outputs:
    • DIN: 0.3 V 10 K-Ohm) -.
    • Line: 0.3 V (10 K-Ohm)
    • Headphones: 0.05 V (8 Ohm)


Technical Data

  • 2-channel, stereo tape deck
  • Max. Reel diameter: 26.5 cm
  • Drive type: 2 eddy current winding motors and 1 hysteresis synchronous sound motor
  • Head equipment: 1 recording head, 1 playback head, 1 erasing head Permaflux
  • Tracks: 2 / 4
  • Tape speeds: 19 cm/s, 38 cm/s
  • Overall frequency response:
    • at 19 cm/sec: 25 - 28'000 Hz
    • at 38 cm/sec: 25 - 30'000 Hz
  • Crosstalk attenuation at 1 kHz in stereo mode: 50 dB
  • Signal-to-noise ratio: 60 dB (1 kHz)
  • Coincidence fluctuations:
    • at 19 cm/sec: ± 0.05 %
    • at 38 cm/sec: ± 0.04 %
  • Max. Deviation of the average velocity:
    • at 38 cm/sec: ± 1 %.
  • Extinguishing damping:
    • at 38 cm/sec: 68 dB
  • Premagnetization and extinction frequency: 100 kHz
  • DC at fast quenching


Special Features

  • 2 VU-meters, frequency linear
  • rear band control
  • Remote control of all functions available as accessory
  • Switch VU meter (High/Normal)
  • Equalization and premagnetization
  • Output adjustable left/right separated


Remarks[edit]


Pictures[edit]

  • Extract from brochure: Teac A-7400

Teac A-7400-Prospekt-1974.jpg


Reports[edit]

Links[edit]