| Signal Center, Pentagon Building, Washington DC. Final tank condensers and antenna coupling condensers of the press wireless 40-kw transmitter. This is a straight r.f. amplifier with a frequency rage from 5.3-21.0 megacycles, utilizing a class "C" push pull cross neutralized circuit. The plate tank circuit of this stage consists of a tapped inductance and two variable tuning condensers technically ganged and are arranged so they can be operated in a series of parallel as determined by the operating frequency. The two 233 type tubes are located directly behind the final tank turning condensers. Here the M/Sgt. hold a set of shorting bars which adjusts the amount of inductance on the take coil. |
first | previous | next | last | home
(16 of 25)
Color Naval Pictures of World War II
|
Grad Degree in History |
Want to Study Abroad? |
Cultures - Time Periods
Prehistory | Africa
| China | Egypt
| Greece | Mesopotamian
| Roman
Aztec - Olmec
| Mayan | Native
American
Middle Ages | World
War II | Home
Site Map Privacy Policy Disclaimer Awards
Pictures were taken at the National Archives and are offered Royalty Free by the World War II Picture section of Historylink101.com . Pictures can be found at the World War II Picture Page.
Copyright © 2000-2008 All Rights Reserved by Eric Rymer.
Contact Us: Suggest a Site - General Comments