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Radiola M21

Country:  Sweden
Manufacturer / Brand:  SRA Svenska Radioaktiebolaget; Stockholm
Brand
 
Radiola
Year: 1923 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 3:
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Radiola M21 - SRA Svenska Radioaktiebolaget;
Material Wooden case, TUBES VISIBLE.
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes

1 det. + 2 AF.

Literature/Schematics (3) Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (page 286)

Model page created by Timo Rantasaari. See "Data change" for further contributors.



All listed radios etc. from SRA Svenska Radioaktiebolaget; Stockholm
Here you find 268 models, 158 with images and 158 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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