• Country
• Switzerland

• Manufacturer / Brand
• Philips - Schweiz

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 13233

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

• Number of Tubes
• 6

• Valves / Tubes
• CF2 CF2 CB1 CF1 CL2 CY1 C1

• Main principle
• TRF without regeneration; 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-240 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 21 cm = 8.3 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super inductance 638U - Philips - Schweiz

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 380 x 470 x 220 mm / 15 x 18.5 x 8.7 inch

• Notes
• Lautsprecher Type 4283 mit 10 Ohm

• Net weight (2.2 lb = 1 kg)
• 11.8 kg / 25 lb 15.9 oz (25.991 lb)

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Thali-Schemasammlung und Tungsram-Röhrenbestückung.

• Mentioned in
• Les Radio PHILIPS de collection

• Other Models

• Here you find 290 models, 216 with images and 224 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips - Schweiz