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295

Information - Help 
ID = 9229
       
Country:
United States of America (USA)
Brand: Speed (Cable Radio Tube)
Developer: Speed (Cable Radio Tube) 
Tube type:  MULTI-SYSTEM, internal coupling   Power/Output 
Identical to 295
Similar Tubes
Heater different:
  291 ; 293
Other base:
  295_6pin
Other base and other heater:
  291_6pin ; 293_6pin
First year Mar.1932 70 Years of Radiotubes and V. page 79
Successor Tubes 1933   2B6  

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Ka) Top contact with a cap
Filament Vf 2.5 Volts / If 4 Ampere / Half indirect / Parallel, (AC/DC)
Description Va max, both sections <250; Pout 4.5W at Va=250V and Ia = 52mA.

There is also a 6pin version in literature. But the basing diagrams for that version are somehow erroneous in different ways. Only the 5pin data in Babani appear conclusive and convincing. And the picture seen at the 295 shows a 5pin tube as well. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
66 x 168 x mm / 2.60 x 6.61 x inch
Literature 70 Years of Radiotubes and V.   
-- Original-techn. papers.   March 1932
Babani, International Radio Tube Encyclopaedia
  usa_speed_295_typ.awdg.png
  295: Radio-Craft, Aug.1932, p.86
Otto Frosinn
 
usa_speed_295tripletwin1.jpg
295: O.F.
Otto Frosinn

 
295_5pin_sock_1.png
295: o
Anonymous 15 Collector

 
295_spec.png
295: Grundig Rö-Tabu, zum M1, Band 3, 1948
Anonymous 15 Collector


Usage in Models 1= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


Forum contributions about this tube
295
Threads: 1 | Posts: 1
Hits: 1472     Replies: 0
295 (295) La 295 a précédé la 2B6
Christian ADAM
06.Jan.08
  1

La 295 est l'ancêtre de la 2B6 dont on pourra lire la description suivante explicitant son fonctionnement:

http://www.radiomuseum.org/forum/2b6_2b6_extrait_du_livre_de_paul_berche.html

 
295
End of forum contributions about this tube

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