Amplifier 30 W 2A3 T-7530, T-11W30

Thordarson Electric Mfg. Co. ; Chicago (IL)

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  • Year
  • 1937 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 354767

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110-120 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 30 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Amplifier 30 W 2A3 T-7530, T-11W30 - Thordarson Electric Mfg. Co. ;
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 15 x 8 x 7.5 inch / 381 x 203 x 191 mm
  • Notes

  • The Thordarson Amplifier 30 W 2A3 T-7530, T-11W30, consists of two parts: the amplifier chassis (T-7530 Foundation Unit) and the power supply chassis (T-7550 Power Transformer and additional parts). Kit parts were available for 71.25 USD (less tubes), and the complete factory-wired unit (amplifier and power supply, less tubes) was available as model T-11W30 (price as listed).

    A separate power supply chassis can be coupled together with the amplifier chassis to make a single unit (which adds 5 inches to the depth for a total of 12.5 inches), microphone input, 
    30 watt speaker field supply (100 mA at 300 V).

  • Price in first year of sale
  • 93.25 USD
  • Mentioned in
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Thordarson Quality Amplifiers brochure, SD-269---25M---2-37, 1937, page 6.)

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