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B420; Nora; Berlin (ID = 3793) Radio
Nora; Berlin: B420 [Radio] ID = 3793 571x527
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For model B420, Nora; Berlin
Country:  Germany
Manufacturer / Brand:  Nora; Berlin
Year: 1932–1934 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: RES094 RE034 RE034 RES164
Main principle TRF with regeneration; 1 Special; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Model: B420 - Nora; Berlin
Material Bakelite case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 290 x 250 x 270 mm / 11.4 x 9.8 x 10.6 inch
Notes Trommelskala,60 Stat.Zeige
Price in first year of sale 120.00 RM +
Source of data Katalog Radio-Zentrale Prohaska 1932/33 / Radiokatalog Band 1, Ernst Erb
Circuit diagram reference Röhren in FS-Bestückungstabellen
Mentioned in Radio-Zentrale Prohaska 1933/34
Picture reference Das Modell ist im «Radiokatalog» (Erb) abgebildet.

All listed radios etc. from Nora; Berlin
Here you find 620 models, 538 with images and 338 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.