• Country
• Germany

• Manufacturer / Brand
• Valvo GmbH, Radioröhrenfabrik; Hamburg

• Year
• 1983 ??

• Category
• RF (Radio Frequency-) Amplifier

• Radiomuseum.org ID
• 98614

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

• Number of Tubes
• 1

• Valves / Tubes
• YL1420

• Main principle
• Radio Frequency Amplification only

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Breitbandverstärker 40757 - Valvo GmbH, Radioröhrenfabrik;

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 500 x 700 x 500 mm / 19.7 x 27.6 x 19.7 inch

• Notes
• Kanalabgestimmter Breitbandverstärker in Hohlraumtechnik für Bildsender in Gitterbasisschaltung im Bereich I.

• Net weight (2.2 lb = 1 kg)
• 70 kg / 154 lb 3 oz (154.185 lb)

• Mentioned in
• Valvo Senderöhren 1983

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 36 models, 31 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Valvo GmbH, Radioröhrenfabrik; Hamburg