• Country
• Switzerland

• Manufacturer / Brand
• Philips - Schweiz

• Year
• 1932/1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 13212

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

• Number of Tubes
• 5

• Valves / Tubes
• E452T E452T E424N C443 506

• Main principle
• TRF without regeneration

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 820A [mit E452T, E452T, E424N, C443, 506] - Philips - Schweiz

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• Ch=830A (870-1932)

  Grid detection on E424N.

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Literature/Schematics (1)
• -- Original-techn. papers.

• 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