THE ALUMINUM ELECTROLYTIC CONDENSER 



51 



one from each electrode properly marked with respect to polarity, 

 extend through the cover to provide the terminals for the condenser. 

 A thin layer of high grade parafhne oil is used on top of the con- 



FiG. 6 — Aluminum electrolytic condenser, designed for direct-current filter service 



denser fluid to prevent evaporation and to keep the inside of the cell 

 from sweating under varying room temperature conditions. The 

 cover is sealed to the glass jar with paraffine to provide additional 

 protection against evaporation and to prevent dirt from getting into 

 the cell. 



