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21

21 ; Canadian Marconi Co. (ID = 300558) Radio
 
21 ; Canadian Marconi Co. (ID = 300559) Radio
 
21 ; Canadian Marconi Co. (ID = 1599520) Radio
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21 ; Canadian Marconi Co. (ID = 300558) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  Canada
Manufacturer / Brand:  Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC
alternative name
 
CMC Canada || Marconi, Canada
Year: 1930/1931 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 24 24 24 27 45 45 80
Main principle TRF without regeneration; 2 AF stage(s); Screengrid 1926-1935
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: 21 - Canadian Marconi Co. Ltd. CMC,
Notes

Push-pull af output.

External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Literature/Schematics (1) Radio College of Canada (RCC) (Marconi data sheet 6)


All listed radios etc. from Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC
Here you find 443 models, 303 with images and 363 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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