Mullard D11

Supersonic (Chassay Bros), Bulawayo, SR

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  • Year
  • 1955 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 223113

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Line / Batteries (any type) / 1.5 & 45 & 45 Volt
  • Loudspeaker
  • Presumably Dynamic Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Mullard D11 - Supersonic Chassay Bros,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 315 x 290 x 140 mm / 12.4 x 11.4 x 5.5 inch
  • Notes

  • Sold in South Africa in 1950s.

    Uses 2 x B104 (2 x 45V for 90V and AD4 for 1.5V LT
    Wavechange by push button
    Short Wave: 90m to 25m
    MW (Broadcast) 540kHz to 1600KHz
    GEC Metal rectifiers in PSU

    Mains PSU has a "rejuvenate" setting which puts a slight trickle charge and may be optional as the radio set plugs into it using identical leads to the PSU leads going to battery packs.

    Loudspeaker grill has a Mullard badge, otherwise very similar design elements to Supersonic  D16, even having a blocked off hole in the wood for telescopic aerial on the case  with cork. The cloth shows though that this model never had a rod aerial.

    Compare with more deluxe Supersonic D16

    The Mullard badge appears to  copy the Mullard valve/Tube logo rather than any Mullard Wireless set.

  • Net weight (2.2 lb = 1 kg)
  • 3.8 kg / 8 lb 5.9 oz (8.37 lb)
  • Author
  • Model page created by Michael Watterson. See "Data change" for further contributors.

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