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F209

Information - Help 
ID = 19805
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 very rare. ***
Identical to F209 = F209N = 27 = UY227
Similar Tubes
Normally replaceable-slightly different:
  F209A ; S210_Fotos-Grammont
First Source (s)
Aug.1930 : Philips Bulletin R1164, p. 35
Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect / Specified voltage AC/DC
Description

This tube is the equivalent of the RCA UY227

 
Information source - - Manufacturers Literature   R650Du 10-1-1929
-- Collector info (Sammler)
er227_so~~3.png F209: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		f209data.png
F209: own collection
Peter den Boer

Collection of

Karlheinz Fischer (D)
Fin Stewart (AUS)
 
f209miniwatt.jpg

F209
 
Forum contributions about this tube
F209
Threads: 1 | Posts: 2
Hits: 2793     Replies: 1
F209 (F209)
Peter Hughes
10.Oct.10 		  1
F209 (F209) 

 Surely this tube is an indirectly heated triode rather than a tetrode.

Peter
Jacob Roschy
11.Oct.10 		  2
fixed ! 

Hello Peter,

thanks for the hint, I've fixed that in between,

Regards, Jacob
 
F209
End of forum contributions about this tube
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