High Fidelity Amplifier MA-25HF

Masco Mark Simpson Company Inc., Long Island

  • Year
  • 1949 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 237256

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Audio-Amplification; 5 AF stage(s)
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 60 cycles, 105-125 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 25 W (43 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: High Fidelity Amplifier MA-25HF - Masco Mark Simpson Company Inc
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 14 x 8.625 x 10 inch / 356 x 219 x 254 mm
  • Notes
  • Masco MA-25HF Amplifier is a 25-watt high fidelity 3-channel amplifier. The cover was available as an option for $7.50.

  • Net weight (2.2 lb = 1 kg)
  • 34 lb (34 lb 0 oz) / 15.436 kg
  • Price in first year of sale
  • 161.50 USD
  • Literature/Schematics (1)
  • Radio Master's Catalog, 15th ed., 1950-51, pg. B-16.

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