• Year
  • 1956 ?
  • Category
  • Military Equipment (not Re, Tr or RXT)
  • Radiomuseum.org ID
  • 176755

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superhet with RF-stage; ZF/IF 460 kHz; 1 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / 12; 24; 115; 220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 cm = 3.1 inch
  • Power out
  • 0.05 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Reception Set R209/2/B - MILITARY U.K. different makers
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 310 x 215 x 230 mm / 12.2 x 8.5 x 9.1 inch
  • Notes
  • The R209/2/B reception set is a later variant of the R209 MK II general-purpose receiver. The construction is very solid and waterproof.
    Antenna connections for wire/rod and for dipole ca. 80 ohms, with antenna-trimmer.
    Frequency range in 4 bands 1,0-2,3 MHz, 2,3-5,6 MHz, 5,5-12,5 MHz, 12,0-20,0 MHz. Sigal modes AM/CW/FM. The BFO is variable to tune an audio-peak at ca. 950 Hz.
    The FM-mode is present because of the existing circuitry, but it is rather useless. V8, CV784 acts in FM-mode as IF-limiter and the diode section is the discriminator. The audio stage is push-pull, with a 10 ohm speaker and a socket for two extra 150 ohm headphones.
    The set lacks the IF-signal-out connector, at it's place, the on/off switch is located now.
    It has a new PSU, 12 volts or 24 volts battery supply, as well as mains-supply 110 and 220 volts. The mains transformer also enables 230 volts. For mains supply a second connecting-cable is supplied. The voltage selector is found left at the top, besides the now locked fuseholder.
    A spare box with different fuses and a spare desiccator is supplied.
    Valves are specified after their schematic-numbering.
  • Net weight (2.2 lb = 1 kg)
  • 10.9 kg / 24 lb 0.1 oz (24.009 lb)
  • Source of data
  • - - Data from my own collection
  • Literature/Schematics (1)
  • equipment manual Mullard London, 1956
  • Author
  • Model page created by Jan Terranea. See "Data change" for further contributors.

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