Stereo Tape Recorder Automatic Reverse A4000S

TEAC; Tokyo

  • Year
  • 1966 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 265537
    • Brand: Tascam

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Tape Recorder
  • Power type and voltage
  • Alternating Current supply (AC) / 100-240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Stereo Tape Recorder Automatic Reverse A4000S - TEAC; Tokyo
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 17.375 x 17.438 x 8.5 inch / 441 x 443 x 216 mm
  • Notes
  • TEAC Stereo Tape Recorder  with Automatic Reverse model A400S

    • Recorder A4000 includes the mechanical tape transport and the playback amplifier.
      It  requires the amplifier Teac RA-40 that includes recording amplifiers and Bias Oscillator. Series A4000 and A4000S appear in 1966. Series A4010 and A4010S
      appear in 1967 with small improvements; Series A4010 GSL appears in 1973 dealing
      with the new tape SLH.
      The two unities are connected  by 2 RCA cables and two multi wire cables and multi contact connectors.
      The integrated system A4000 and RA-40 is labelled as A4010.
    • Tape format: 1/4” width
    • Track format: 4 Track 2 Channels
    • Reel Size: 7 inch (maximum) ; 5 inch minimum
    • Tape speed: 7.5 ips  and 3.75 ips  ± 0.5 %
    • Wow and Flutter: 7.5 ips < 0.12%. 3.75 ips  < 0.15%  (weighted)
    • Heads: 4: erase, record, forward play and reverse play
    • Motors: 3: one for capstan 2 speed hysteresis synchronous; 2 eddy current type outer-rotor motor for reel drive
    • Bias Frequency: 100 kHz
    • Jack  line inputs – 140 mV  10 k ohms unbalanced
    • Jack  mic inputs – 0.25 mV 10 k ohms  unbalanced
    • Jack  output – 1 V for load impedance  > 100 k ohms
    • Headphone output: requires high impedance headphone
    • S/N ratio: > 50 dB weighted
    • Frequency response:
      • at 7.5 ips: 30 Hz – 20 kHz  (50 Hz – 15 kHz at  ±3 dB)
      • at 3.75 ips: 40 Hz – 15 kHz (50 Hz – 10 kHz at  ±3 dB)
    • Crosstalk: 50 dB (channel to channel at 1000 Hz) 40 dB between tracks at 100 Hz
    • Power requirements: 100-240 V, 50/60 Hz, 100 W.
  • Net weight (2.2 lb = 1 kg)
  • 20 kg / 44 lb 0.8 oz (44.053 lb)
  • Mentioned in
  • - - Manufacturers Literature
  • Author
  • Model page created by Moisés Piedade. See "Data change" for further contributors.

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