• Country
• Great Britain (UK)

• Manufacturer / Brand
• McMichael Radio Ltd.; Slough

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 94787

• • alternative name: McMichael, Leslie

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

• Number of Tubes
• 4

• Valves / Tubes
• SG215 HL2K or HL210 HL2K or HL210 Pen220

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 2 & 126 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Power out
• 0.3 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Duplex four SMC [late] - McMichael Radio Ltd.; Slough

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 390 x 220 x 380 mm / 15.4 x 8.7 x 15 inch

• Notes
• The late model SMC has a manual volume control by means of the variable grid bias for the RF stage, while the early model used to vary the RF stage filament.
  This is a leather covered suitcase model. The lid of the case contains the frame aerial and the loudspeaker. Provisions for headphones, external aerial and earth in the lid.

• Net weight (2.2 lb = 1 kg)
• 13 kg / 28 lb 10.1 oz (28.634 lb)

• Price in first year of sale
• 17.00 GB

• Source of data
• -- Original prospect or advert

• Mentioned in
• Radio! Radio! (p.127 fig.368)

• Other Models

• Here you find 183 models, 123 with images and 120 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from McMichael Radio Ltd.; Slough