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F640U; Blaupunkt Ideal, (ID = 13611) Radio
F640U; Blaupunkt Ideal, (ID = 210925) Radio F640U; Blaupunkt Ideal, (ID = 210926) Radio
F640U; Blaupunkt Ideal, (ID = 210927) Radio F640U; Blaupunkt Ideal, (ID = 1106325) Radio
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F640U; Blaupunkt Ideal, (ID = 210925) Radio
Blaupunkt Ideal,: F640U [Radio] ID = 210925 640x480
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For model F640U, Blaupunkt (Ideal), Berlin, später Hildesheim
Country:  Germany
Manufacturer / Brand:  Blaupunkt (Ideal), Berlin, später Hildesheim
alternative name
Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
Year: 1951 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UCH11 UBF11 UCL11 UY11
Main principle Superheterodyne (common); ZF/IF 473 kHz
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage AC/DC-set / 110,220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 15 cm = 5.9 inch
Power out
from Model: F640U - Blaupunkt Ideal, Berlin,
Material Wooden case
Dimensions (WHD) 455 x 270 x 175 mm / 17.9 x 10.6 x 6.9 inch
Notes Ch=B174KU=B198KU=F630U=F640U
External source of data Wiesmüller
Source of data Lange, Schaltungen der Funkindustrie

All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim
Here you find 3214 models, 2898 with images and 2221 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.