Tetrode (Danish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tetrode" in Danish language version.

refsWebsite

Global rank Danish rank

4,352^nd place

low place

1thefreedictionary.com

614^th place

655^th place

low place

low place

1web.archive.org

1^st place

1^st place

r-type.org (Global: low place; Danish: low place)

r-type.org: The Bi-Grid Valve - A Needless Invention? by Desmond Thackeray. Radio Bygones April/May 1994, backup

scitation.org (Global: 4,352^nd place; Danish: low place)

aip.scitation.org

Space Charge Grid Tube with Variable Mu Grid, Physics 5, 173 (1934), Walter Dehlinger

thefreedictionary.com (Global: 614^th place; Danish: 655^th place)

encyclopedia2.thefreedictionary.com

thefreedictionary.com: Space-Charge Grid Tube Citat: "...an electron tube containing an additional grid (cathode grid) between the cathode and the control grid..."

web.archive.org (Global: 1^st place; Danish: 1^st place)

r-type.org: The Bi-Grid Valve - A Needless Invention? by Desmond Thackeray. Radio Bygones April/May 1994, backup