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938AS

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938AS; Philips akc. spol., (ID = 1749001) Radio
Philips akc. spol.,: 938AS [Radio] ID = 1749001 1280x1239
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For model 938AS, Philips akc. spol., Praha-Hloubetin
 
Country:  Czechoslovakia
Manufacturer / Brand:  Philips akc. spol., Praha-Hloubetin
Year: 1933/1934 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: E438 E438 C453 1823
Main principle TRF with regeneration; 2 AF stage(s)
Tuned circuits 1 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Alternating Current supply (AC) / 110-245 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 17 cm = 6.7 inch
Power out 2.8 W (unknown quality)
from Radiomuseum.org Model: 938AS - Philips akc. spol., Praha-
Material Wooden case
Shape Tablemodel, low profile (big size).
Notes
Reaction coils with fixed position; feedback regulated by C13.
Grid Detection done by first tube E438. 
LW, BC and SW are divided in 6 ranges:
  • I. 15-33 m.
  • II. 32-90 m.
  • III. 85-200 m.
  • IV. 200-400 m.
  • V. 400-950 m.
  • VI. 950-2000 m.
The first tube (E438) is shielded to neutralize the magnetic field of the loudspeaker.
Collectors' prices  
External source of data Service Dokumentation
Literature/Schematics (1) -- Schematic

Model page created by Ernst Röggla. See "Data change" for further contributors.



All listed radios etc. from Philips akc. spol., Praha-Hloubetin
Here you find 124 models, 94 with images and 101 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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