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Airflo 491

Airflo 491; Radio Instruments (ID = 1219577) Radio Airflo 491; Radio Instruments (ID = 1219580) Radio
Airflo 491; Radio Instruments (ID = 1219581) Radio Airflo 491; Radio Instruments (ID = 1219582) Radio
Airflo 491; Radio Instruments (ID = 1219583) Radio Airflo 491; Radio Instruments (ID = 1219584) Radio
Airflo 491; Radio Instruments (ID = 1219585) Radio Airflo 491; Radio Instruments (ID = 1219586) Radio
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Airflo 491; Radio Instruments (ID = 1219577) Radio
Radio Instruments: Airflo 491 [Radio] ID = 1219577 800x600
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For model Airflo 491, Radio Instruments Ltd (RI)., London
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Radio Instruments Ltd (RI)., London
Year: 1947/1948 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: TH41 VP41 Pen45 UU6
Main principle Superhet, IF regeneration; ZF/IF 450 kHz; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 210-250 Volt
Loudspeaker Permanent or electro-dynamic (moving coil), system not known yet. / Ø 15 cm = 5.9 inch
Power out 3 W (unknown quality)
from Radiomuseum.org Model: Airflo 491 - Radio Instruments Ltd RI.,
Material Wooden case
Shape Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
Dimensions (WHD) 520 x 300 x 300 mm / 20.5 x 11.8 x 11.8 inch
Notes All tubes are Mazda metallized type.
Net weight (2.2 lb = 1 kg) 8 kg / 17 lb 9.9 oz (17.621 lb)
Literature/Schematics (1) Trader Service Sheet (suppl. of Wireless & El. Trader, etc.)

Model page created by Mihály Horn. See "Data change" for further contributors.



All listed radios etc. from Radio Instruments Ltd (RI)., London
Here you find 45 models, 39 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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