Audio Database

　　
  • AT-4
  • AT-4

    ¥ 880 (around 1965)



    L-type constant impedance design attenuator.

    Input 20W
    Impedance 8 Ω
    Method L-type constant impedance
    Weight 0.04kg
  • AT-50
  • AT-50

    ¥ 1,600 (around 1980)



    Continuously variable type level control.

    Adaptive impedance 8 Ω
    Program source input 50W
    Rotation angle 300 ゜
    Mounting Hole Diameter 54 φ mm
  • AT-61
  • AT-61

    ¥ 1,400 (around 1980)



    Continuously variable type level control.

    Adaptive impedance 8 Ω
    Program source input 50W
    Rotation angle 300 ゜
    Mounting Hole Diameter 9 φ mm
  • AT-70
  • AT-70

    ¥ 13,500 (around 1980)



    A transformer type level controller that accurately controls from 0 to 21 dB.

    Adaptive impedance 8 Ω / 16 Ω
    Frequency used 300 Hz or more
    Attenuation range 0 ~ 21 dB (1 dB step)
    Program source input 100W
    External dimensions 80 mm wide x 90 mm high x 150.5 mm
    Weight 1.06kg
  • AT-100
  • AT-100

    ¥ 2,500 (around 1980)



    Professional specification level controller with high input resistance design.

    Adaptive impedance 8 Ω
    Program source input 100W
    Rotation angle 300 ゜
    Mounting Hole Diameter 9 φ mm
    Shaft Length 30mm