all amplifying stages having discharge tubes

Follow

Industry

CPC
H03G9/28

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H03Electronic circuits H03GCONTROL OF AMPLIFICATION H03G9/00Combinations of two or more types of control

Current Industry

H03G9/28all amplifying stages having discharge tubes

Industries

Patents Grantslast 30 patents

Information Patent Grant
2316474
- Patent number 2,316,474
- Issue date Apr 13, 1943
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
2055790
- Patent number 2,055,790
- Issue date Sep 29, 1936
- H03 - BASIC ELECTRONIC CIRCUITRY