522A4

• Country
• Czechoslovakia

• Manufacturer / Brand
• Philips akc. spol., Praha-Hloubetin

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 23158

• Picture
• Schematics

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

• Number of Tubes
• 6

• Valves / Tubes
• AK1 AF2 AB1 E446 E443H 506

• Main principle
• Superheterodyne (common); ZF/IF 115 kHz

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 103; 111; 118; 127; 135; 143; 155; 196; 210; 225; 240; 253 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 20 cm = 7.9 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 522A4 - Philips akc. spol., Praha-

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 345 x 412 x 220 mm / 13.6 x 16.2 x 8.7 inch

• External source of data
• Erb

• Source of data
• Ceskoslovenske prijimace 1933-1945, Baudys 1947

• Other Models

• Here you find 150 models, 125 with images and 117 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips akc. spol., Praha-Hloubetin