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Trio 420A

Trio 420A; Tesla; Praha, (ID = 71885) Radio
 
Trio 420A; Tesla; Praha, (ID = 96789) Radio
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Trio 420A; Tesla; Praha, (ID = 384353) Radio
Tesla; Praha,: Trio 420A [Radio] ID = 384353 933x699
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For model Trio 420A, Tesla; Praha, Bratislava etc.
 
Country:  Czechoslovakia
Manufacturer / Brand:  Tesla; Praha, Bratislava etc.
Brand
 
Supraphon
Year: 1958/1959 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 6H31 6F31 6BC32 6L31 6Z31
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 Alternating Current supply (AC) / 110-220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
Power out 3 W (unknown quality)
from Radiomuseum.org Model: Trio 420A - Tesla; Praha, Bratislava etc.
Material Bakelite case
Shape Tablemodel, with any shape - general.
Notes Loudspeaker dimensions: 16x12cm. Marked model as 420A-a was mounted to the case of Trio 420U.
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 552 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Tesla; Praha,: Trio 420A
Threads: 1 | Posts: 1
Hits: 2036     Replies: 0
tesla: 420A; Trio
Tilman Betz
25.Sep.11
  1

Korrektur Stromlauf Tesla 420A:

Die Kombination R14, 250 Ohm und C41, 50uF gehört natürlich an die Kathode angeschlossen und nicht an Gitter1 der Endpentode 6L31.

 

 
Tesla; Praha,: Trio 420A
End of forum contributions about this model

  
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