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B-612

B-612 ; DeWald Radio Mfg. (ID = 282133) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 282134) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 282135) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 994811) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 994812) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 994813) Converter
 
B-612 ; DeWald Radio Mfg. (ID = 994814) Converter
B-612 ; DeWald Radio Mfg. (ID = 1009677) Converter B-612 ; DeWald Radio Mfg. (ID = 994810) Converter
B-612 ; DeWald Radio Mfg. (ID = 282132) Converter
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B-612 ; DeWald Radio Mfg. (ID = 1009677) Converter
DeWald Radio Mfg.: B-612 [Converter] ID = 1009677 933x652
Select picture or schematic to display from thumbnails on the right and click for download.
For model B-612, DeWald Radio Mfg. Corp., Pierce Airo Inc.
 
Country:  United States of America (USA)
Manufacturer / Brand:  DeWald Radio Mfg. Corp., Pierce Airo Inc.
Brand
 
Pierce Airo
Year: 1948 Category: Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
Valves / Tubes 6: 12AT7 12BA6 12BA6 12AL5 12SA7 35W4
Main principle RF Converter/Adapter (not voltage converter); ZF/IF 10.7 kHz
Tuned circuits 1 AM circuit(s)     8 FM circuit(s)
Wave bands FM Broadcast Band Only
Details Converter
Power type and voltage AC/DC-set / 105-125 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: B-612 - DeWald Radio Mfg. Corp.,
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 11 x 7 x 6 inch / 279 x 178 x 152 mm
Notes Wireless FM band tuner. Rebroadcasts demodulated FM signals in BC(500-750kHz) band.
Net weight (2.2 lb = 1 kg) 5 lb (5 lb 0 oz) / 2.270 kg
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 19 = 1949 and before
Mentioned in Table Top Radios Vol. 4 Stein 2003
Literature/Schematics (4) Photofact Folder, Howard W. SAMS (Set 42, Date 7/48, Folder 4812-9)


All listed radios etc. from DeWald Radio Mfg. Corp., Pierce Airo Inc.
Here you find 424 models, 191 with images and 327 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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