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BELL SYSTEM TECHNICAL JOURNAL 



Fig. 7 — Amplifier No. 1 — Plate voltage 350-V, 1,000 c.p.s. input. Variation of gain 

 and distortion with output 



h 



Q. 



h 



O 



ID 

 O 



z 

 o 



a. 

 < 



D 



Z 



< 

 ID 



Fig. 8 — Amplifier No. 2, 1,000 c.p.s. input. \'ariation of gain and distortion with 



output 



