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1645A

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ID = 81751
       
Country:
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Photocell 
Identical to 1645A
Similar Tubes
Other characteristic (electr. data):
  1645
Differences not known by us:
  5652

Filament
Description

Vacuum photocell with capacitance-balancing electrode and S-4 response.  Similar to 1645, 'A' version selected for increased sensitivity of 30 uA/lumen. Sales limited to Times Fascimile Co., RCA communications and SigC.

 
Information source Tube Lore (II)   

Collection of

 
20200429_170751.jpg

 

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