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A SURVEY OF SEMICONDUCTOR DEVICES

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IP<br />

PLATE<br />

CATHODE<br />

T2 > T1<br />

T 1<br />

V P<br />

TEMP-LIMITED<br />

CURRENT<br />

SCL CURRENT<br />

V P<br />

VG<br />

GRID<br />

IP VG = 0<br />

VACUUM TUBES<br />

DIODE TUBE TRIODE TUBE TETRODE TUBE PENTODE TUBE<br />

PLATE<br />

CATHODE<br />

V G < 0<br />

V P<br />

VP<br />

VG<br />

IP<br />

GRID<br />

CATHODE<br />

PLATE<br />

VG = 0<br />

V P<br />

V P<br />

SCREEN<br />

VG < 0<br />

SUPPRESSOR<br />

GRID<br />

VG<br />

IP<br />

PLATE<br />

CATHODE<br />

VG = 0<br />

VG < 0<br />

V P<br />

VP<br />

SCREEN<br />

6/39 K. Ng

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