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31

31 ; National Dobro Co.; (ID = 840681) Ampl/Mixer
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31 ; National Dobro Co.; (ID = 840681) Ampl/Mixer
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  United States of America (USA)
Manufacturer / Brand:  National Dobro Co.; San Louis
Year: 1939 Category: Audio Amplifier or -mixer
Valves / Tubes 4: 1G6G 1G6G 1C5G 1C5G
Main principle Audio-Amplification
Wave bands - without
Details
Power type and voltage Storage and/or dry batteries / 1,5 & 90 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out 0.8 W (unknown quality)
from Radiomuseum.org Model: 31 - National Dobro Co.; San Louis
Notes Musical Instrument Amplifier.

Model page created by Hannes Gerber. See "Data change" for further contributors.



All listed radios etc. from National Dobro Co.; San Louis
Here you find 13 models, 2 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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