• Country
• Switzerland

• Manufacturer / Brand
• Philips - Schweiz

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 13230

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

• Number of Tubes
• 6

• Valves / Tubes
• AK1 E447 AB1 E446 E443H 506

• Main principle
• Superheterodyne (common); ZF/IF 104 kHz

• Tuned circuits
• 7 AM circuit(s)

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

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Superhet 522A - Philips - Schweiz

• Dimensions (WHD)
• 350 x 400 x 210 mm / 13.8 x 15.7 x 8.3 inch

• Notes
• Holland: Erster Superhet (ZF 104/115) von Philips [725101] (auch AK2, AF2)

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• 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