Derby RT21

Zenitron; Torino

  • Year
  • 1952–1955
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 99233

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • TRF with diode detector
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 2x 22,5 & 1x 1,5 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic. / Ø 5 cm = 2 inch
  • Material
  • Bakelite or Plastics (type unknown)
  • from Radiomuseum.org
  • Model: Derby RT21 - Zenitron; Torino
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 180 x 55 x 60 mm / 7.1 x 2.2 x 2.4 inch
  • Notes
  • L'accensione dell'apparecchio avviene estraendo l'antenna.
  • Net weight (2.2 lb = 1 kg)
  • 0.5 kg / 1 lb 1.6 oz (1.101 lb)
  • Mentioned in
  • -- Schematic
  • Author
  • Model page created by Pietro Gallia. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

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

 Forum