• Year
  • 1947 ?
  • Category
  • Amateur Equipment (Other, but not Key)
  • Radiomuseum.org ID
  • 360719

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105; 115; 125 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Power out
  • 11 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Modulator Four-11 - Hammarlund Mfg. Co. Inc.; New
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 15.25 x 8.25 x 9.5 inch / 387 x 210 x 241 mm
  • Notes
  • Modulator for the Hammarlund HAM Transmitter Four-20.

  • Net weight (2.2 lb = 1 kg)
  • 41 lb (41 lb 0 oz) / 18.614 kg
  • Mentioned in
  • - - Manufacturers Literature (Instruction Manual Hammarlund Four-20 Transmitter Sec. 1 -- Four-11 Modulator Sec. 2, Form 1.2M-4-47)

 Collections | Museums | Literature

 Forum