H03G9/26 - CPC Classification Index

ClassID:

220315 ⎘

H03G9/26 - CPC Classification

Classification description:

Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifying stages as well as in frequency-selective amplifying stages

Sub-classes:

H03G9/28 » all amplifying stages having discharge tubes 0
H03G9/30 » all amplifying stages having semiconductor devices 0