• Country
• Brazil

• Manufacturer / Brand
• Stevaux, Orlando, Indústrias S.A.; São Paulo

• Year
• 1956 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 295254

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

• Number of Tubes
• 6

• Valves / Tubes
• 6AV6 12AX7 6C4 6L6 6L6 5U4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110/220 Volt

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

• Power out
• 25 W (undistorted)

• from Radiomuseum.org
• Model: Amplificador 7025 - Stevaux, Orlando, Indústrias S

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 400 x 270 x 230 mm / 15.7 x 10.6 x 9.1 inch

• Notes

• 25W amplifier for music and public address, supplied in kit format.
  Microphone and pickup inputs

  Stevaux transformers for this model:

  * Ac power transformer 2 x 350V 200mA (T3)
  * Output transformer 35W power handling, Zp = 6600 Ω, Zs = 4, 8, 15 and 500 Ω (T2)
  * Driver transformer Zin / Zout = 1:4 or 1:2 (T1)
  * Choke 200 mA, 7.5 Hy (CH1)
  * Choque 40 mA 30 Hy (CH2)

  Voltage chart for 110V mains (meter = 20K Ω / volt)

  6L6 plates = 380V;  screen grids = 285V
  6C4 plate = 145V; cathode = 3V
  12AX7 plates = 205V; cathodes = 2V
  6AV6 plate = 125V; cathode = 1.5V
   

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Antonio Rabitti. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 0 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stevaux, Orlando, Indústrias S.A.; São Paulo