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Trio 420U

Trio 420U; Tesla; Praha, (ID = 39118) Radio
 
Trio 420U; Tesla; Praha, (ID = 96788) Radio
Trio 420U; Tesla; Praha, (ID = 2238357) Radio Trio 420U; Tesla; Praha, (ID = 2238358) Radio
Trio 420U; Tesla; Praha, (ID = 2238360) Radio Trio 420U; Tesla; Praha, (ID = 2238356) Radio
Trio 420U; Tesla; Praha, (ID = 2238361) Radio Trio 420U; Tesla; Praha, (ID = 2238359) Radio
Trio 420U; Tesla; Praha, (ID = 103756) Radio Trio 420U; Tesla; Praha, (ID = 39198) Radio
Trio 420U; Tesla; Praha, (ID = 71446) Radio Trio 420U; Tesla; Praha, (ID = 384011) Radio
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Trio 420U; Tesla; Praha, (ID = 2238357) Radio
Tesla; Praha,: Trio 420U [Radio] ID = 2238357 1024x768
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For model Trio 420U, Tesla; Praha, Bratislava etc.
 
Country:  Czechoslovakia
Manufacturer / Brand:  Tesla; Praha, Bratislava etc.
Brand
 
Supraphon
Year: 1956/1957 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 12H31 12F31 12BC32 35L31 35Y31
Main principle Superheterodyne (common); ZF/IF 468 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage AC/DC-set / 120/220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16 cm = 6.3 inch
Power out 2 W (unknown quality)
from Radiomuseum.org Model: Trio 420U - Tesla; Praha, Bratislava etc.
Material Bakelite case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 320 x 215 x 175 mm / 12.6 x 8.5 x 6.9 inch
Notes Variant 420U-2 has different tuning scale.
Net weight (2.2 lb = 1 kg) 3.5 kg / 7 lb 11.3 oz (7.709 lb)
Source of data -- Collector info (Sammler)
Mentioned in Ceskoslovenske Rozhlasove a Televizni Prijimace I a II


All listed radios etc. from Tesla; Praha, Bratislava etc.
Here you find 1791 models, 1091 with images and 549 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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