• Country
• Germany

• Manufacturer / Brand
• Valvo GmbH, Radioröhrenfabrik; Hamburg

• Year
• 1983 ??

• Category
• RF (Radio Frequency-) Amplifier

• Radiomuseum.org ID
• 98680

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

• Number of Tubes
• 1

• Valves / Tubes
• YL1540

• 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: Verstärkereinheit 40777 - Valvo GmbH, Radioröhrenfabrik;

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

• Dimensions (WHD)
• 355 x 600 x 345 mm / 14 x 23.6 x 13.6 inch

• Notes
• Kontinuierlich abstimmbare Verstärkereinheit in Hohlraumtechnik für FM-Tonsender im Bereich III.

• Net weight (2.2 lb = 1 kg)
• 33 kg / 72 lb 11 oz (72.687 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