• Country
• Great Britain (UK)

• Manufacturer / Brand
• Philips Electrical, Lamps, Industrial - Miniwatt; London

• Year
• 1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 78079

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

• Number of Tubes
• 5

• Valves / Tubes
• S4VB S4VB SD4_Mullard PM24A 1821

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 103-253 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 2.8 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Superinductance 634A - Philips Electrical, Lamps,

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 16 x 19 x 10.5 inch / 406 x 483 x 267 mm

• Notes
• Later nicknamed "The Ovaltine Set".

• Price in first year of sale
• 17.00 GBP

• Source of data
• Radio! Radio!

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 426 models, 301 with images and 285 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips Electrical, Lamps, Industrial - Miniwatt; London