• Country
• Spain

• Manufacturer / Brand
• Maymo, Escuela Radio; Barcelona etc.

• Year
• 1958

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 151566

• • alternative name: ERMSA

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

• Number of Tubes
• 4

• Valves / Tubes
• EBF80 EBF80 EL84 EZ80

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 125 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Music 4-4 - Maymo, Escuela Radio;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 250 x 180 x 160 mm / 9.8 x 7.1 x 6.3 inch

• Net weight (2.2 lb = 1 kg)
• 5 kg / 11 lb 0.2 oz (11.013 lb)

• Price in first year of sale
• 1,100.00 ESP

• Literature/Schematics (1)
• Anuncio revista Electrotecnia Popular no.13 - 1958

• Author
• Model page created by Miguel Bravo-Cos. See "Data change" for further contributors.

• Other Models

• Here you find 37 models, 34 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Maymo, Escuela Radio; Barcelona etc.