• Country
• Great Britain (UK)

• Manufacturer / Brand
• AVO Ltd.; London

• Year
• 1937–1947 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 146979

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

• Number of Tubes
• 1

• Valves / Tubes
• L63 or 6B8G

• Conflicting model year with tube data.
• The model date contradicts tube dates. [ L63 (1938)]

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 220-240 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: R-C Test-Bridge - AVO Ltd.; London

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 170 x 190 x 100 mm / 6.7 x 7.5 x 3.9 inch

• Notes

• Earlier versions used the L63 triode with a'Westector' as the detector diode.

  Later versions used the 6B8G double diode pentode.
  An example has been found in South Africa fitted with a EBF2 side contact valve.

• Source of data
• - - Data from my own collection

• Mentioned in
• HRSA Radiowaves, #143 Jan 2018, Page 32.

• Literature/Schematics (1)
• -- Collector info (Sammler) (AVO Test Bridge Restoration Manual, Peter Wotton)

• Author
• Model page created by Albert Weiss. See "Data change" for further contributors.

• Other Models

• Here you find 82 models, 79 with images and 41 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from AVO Ltd.; London