• Country
• Great Britain (UK)

• Manufacturer / Brand
• Mullard Wireless, London (see also Mullard Radio Valve)

• Year
• 1948 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73676

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

• Number of Tubes
• 9

• Valves / Tubes
• EF39 ECH35 ECH35 EF39 EM34 EBC33 EL33 EL33 AZ31

• Main principle
• Superhet, double/triple conversion; ZF/IF 452 kHz

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110-245 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• from Radiomuseum.org
• Model: MAS-231 - Mullard Wireless, London see

• Dimensions (WHD)
• 24 x 11 x 14 inch / 610 x 279 x 356 mm

• Net weight (2.2 lb = 1 kg)
• 17 kg / 37 lb 7.1 oz (37.445 lb)

• External source of data
• World Explorers- Technical Sales Handbook

• Author
• Model page created by Mario Coelho. See "Data change" for further contributors.

• Other Models

• Here you find 143 models, 117 with images and 59 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mullard Wireless, London (see also Mullard Radio Valve)