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ORP90

Information - Help 
ID = 28047
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Photo resistor 
Identical to ORP90

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Technology / Measurement
Filament
 
orp90_69rm346d.jpg
ORP90: Collection JR
Jacob Roschy

 
orp90_a.png
ORP90: Philips Pocketbook
Christian Schaufelberger

 
orp90_01.png
ORP90: Manufacturer's Literature
Emilio Ciardiello



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