955 acorn triode (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "955 acorn triode" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

1antiquewireless.org

low place

low place

low place

low place

antiquewireless.org

Ludwell A. Sibley. "The Acorn Tube" (PDF). Retrieved 2 April 2018.

books.google.com

Popular Science, January 1935, New Dwarf Tube Ready for Amateur, p. 58, at Google Books

pocnet.net

frank.pocnet.net

"957 • 958 • 959 (Acorn Types)" (PDF). R.C.A. Manufacturing Company, Harrison, New Jersey, USA. Retrieved 15 August 2015.