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287A

Information - Help 
ID = 35395
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Thyratron 
Identical to 287A
Similar Tubes
Heater different:
  722A ; CE-722A

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap
Filament Vf 2.5 Volts / If 7 Ampere / Direct
Description Mercury thyratron. Oxide coated filament; 2.5KV PIV, 640mA.
Continental, Hytron and WE known manufacturers. Replaces 277A. 
Information source Tube Lore (I)   
- - Manufacturers Literature   
 
we_287a.jpg
287A: aus ebay, mit Erlaubnis des Verkäufers jrcradio
Gottfried Silberhorn

 
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287A
Emilio Ciardiello

 
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287A: own collection
Peter den Boer


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