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WunderlichA-Auto

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ID = 21407
       
Country:
United States of America (USA)
Brand: Arcturus Radio Tube Co.; Newark, NJ
Developer: Arcturus Radio Tube Co.; Newark, NJ 
Tube type:  Wunderlich Tube   Detector 
Identical to WunderlichA-Auto = WA-Auto = A-Auto
Similar Tubes
Other characteristic (electr. data):
  69_Wunderlich ; 70_Wunderlich ; 92_Wunderlich ; KR22
Differences not known by us:
  69_Sylvania
First year 1932 - - Data from my own collection
Base 6-Pin-Base U6A, old, USA
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Description

A triode had two intermeshed grids equally spaced from the single cathode and the plate. Used as a full wave detector (am) with additional LF-amplification.
It was made only with a 6 pin base with no cap. The original announcement in the press (July 1932) made at the same time as the 2.5 volt version, mentioned both 5 and 6-pin types.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 x 103 x 38 mm / x 4.06 x 1.50 inch
Weight 34 g / 1.20 oz
Information source Tube Lore (II)   p. 31
tubesockel_klein_wa6p_9.png WunderlichA-Auto: W.H.
Wolfgang Holtmann

Just Qvigstad 		a_auto_characteristics.png
WunderlichA-Auto: My schematic collection.
Pier Antonio Aluffi

Collection of

Geri Meier (CH)
Robert Gillespie (USA)
 
arcturus_wunderlich_automotive_bm.jpg

WunderlichA-Auto
 

Variants

Wunderlich Automotive von Arcturus
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