Powertone Portable Amplifier 705

Try-Mo (Powertone) Radio Co., Inc.; NY

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  • Year
  • 1933
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 368619

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 4 W (undistorted)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Powertone Portable Amplifier 705 - Try-Mo Powertone Radio Co.,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes

  •  A powerfully constructed and durable unit that is a complete public address system.          The case which contains the microphone transformer. amplifier, dynamic speaker and all accessories can be carried with one hand to any location. A switch located in the rear enables one to use phonograph or microphone at will. No additional appliances are required.              A “C” battery for use with the microphone is included in the case. The entire unit is equal to any amplifier of its size whether portable or stationary. The dynamic speaker delivers 3 to 4 watts of undistorted power which is ample for medium sized audiences.                              The Powertone Portable Amplifier is ideal for public address, in stores or offices, classrooms, churches, athletic fields or swimmingpools. Complete with 1-224, 1-245 and 1-280 tubes.        R.C.A. hand microphone and C battery.

    Complete with tubes and microphone.

     

  • Price in first year of sale
  • 19.50 USD
  • Mentioned in
  • -- Original prospect or advert (1933 Try-Mo Radio Co Catalog page 12)
  • Author
  • Model page created by Glen Orriss. See "Data change" for further contributors.

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