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PCE
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IPC Subgroup
H03F 1/5

with tubes only

Introduced: September 1968

Last revised: January 2006

Full Title

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Modifications of amplifiers to extend the bandwidth > of aperiodic amplifiers > with tubes only

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
AMPLIFIERS