FI (Note)/(Index) list

Descriptions for H03F3/00 and notes/indexes are displayed on this screen.

H03F3/00 Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Note(s)
    Groups H03F 3/20-H03F 3/72 take precedence over groups H03F 3/02-H03F 3/189.[2]