Marconiphone V1

Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)

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  • Year
  • 1925
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 76491

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

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • DER
  • Main principle
  • TRF with regeneration
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 2, 42 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Marconiphone V1 - Marconi Co. Marconiphone,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 220 x 190 x 160 mm / 8.7 x 7.5 x 6.3 inch
  • Notes

  • Marconiphone Type V.1 (B.101), c.1924–1925
    One‑valve TRF receiver with regeneration, housed in a polished mahogany cabinet with a vertical ebonite front panel. Uses a single D.E.R. dull‑emitter triode and employs a patent variable‑resistance reaction control that allows adjustment without re‑tuning.
    Covers wavelengths from 300 to 3,000 metres by means of interchangeable range blocks, with the standard block supplied for the most commonly used broadcast wavelengths.
    Powered by a 2‑volt accumulator and 42‑volt HT battery, and intended for use with high‑impedance headphones.
    Dimensions approximately 8½ × 7½ × 6½ inches. Listed in the 1925 Marconiphone catalogue as Type V.1 (B.101), with a complete outfit available as B.102.

    Pricing (as advertised in 1925 Catogue)

    • B.101 – V.1 receiver with aerial/earth lead + standard range block: £5 3s 0d, Royalty: £0 12s 6d
    • B.102 – Complete outfit including valve, batteries, headphones, and royalty: £9 7s 8d

    Accessory prices (as advertised in 1925 Catogue):

    • D.E.R. valve (B.404): £0 14s 0d
    • 42‑V HT battery (B.501): £0 14s 0d
    • 2‑V 40‑Ah accumulator (B.521): £1 2s 6d
    • 4,000‑ohm headphones (R.1255): £1 1s 8d
  • Net weight (2.2 lb = 1 kg)
  • 2.1 kg / 4 lb 10 oz (4.626 lb)
  • External source of data
  • Brown Bros. Catalog 1925
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Marconiphone Receiving Instruments, Amplifiers, Components and Accessories Catalogue (1925))

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The model Marconiphone is part of the collections of the following members.

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