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Kosmofon MK307

Kosmofon MK307; Microphona Mikrofona (ID = 17448) Radio
Kosmofon MK307; Microphona Mikrofona (ID = 1483980) Radio Kosmofon MK307; Microphona Mikrofona (ID = 273382) Radio
Kosmofon MK307; Microphona Mikrofona (ID = 293138) Radio Kosmofon MK307; Microphona Mikrofona (ID = 293139) Radio
Kosmofon MK307; Microphona Mikrofona (ID = 293140) Radio Kosmofon MK307; Microphona Mikrofona (ID = 1483981) Radio
Kosmofon MK307; Microphona Mikrofona (ID = 1483982) Radio Kosmofon MK307; Microphona Mikrofona (ID = 1483983) Radio
Kosmofon MK307; Microphona Mikrofona (ID = 1898376) Radio
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Kosmofon MK307; Microphona Mikrofona (ID = 1483980) Radio
Microphona Mikrofona: Kosmofon MK307 [Radio] ID = 1483980 933x624
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For model Kosmofon MK307, Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice:
Foto:Aleš Krejčí Tschechien. Vielen Dank !
 
Country:  Czechoslovakia
Manufacturer / Brand:  Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice
alternative name
 
Telefony Microfona
Year: 1936/1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: AF3 AF7 AL4 AZ1
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); ZF/IF 1 kHz; 2 AF stage(s); Anode bend detection
Tuned circuits 3 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 110-240 Volt
Loudspeaker Permanent or electro-dynamic (moving coil), system not known yet.
Power out
from Radiomuseum.org Model: Kosmofon MK307 - Microphona Mikrofona, Bratri
Material Wooden case
Shape Tablemodel, with any shape - general.
Notes 45W Verbrauch
Price in first year of sale 1'437.00 Kc
External source of data Erb
Source of data Ceskoslovenske prijimace 1933-1945, Baudys 1947


All listed radios etc. from Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice
Here you find 67 models, 50 with images and 46 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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