Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

donate to eham
   Home   Help Search  
Pages: Prev 1 [2]   Go Down
  Print  
Author Topic: 2 megawatt LW station Radio France Inter to close  (Read 7440 times)
KD0REQ
Member

Posts: 1895




Ignore
« Reply #15 on: February 04, 2017, 07:05:54 AM »

broadcast transmitters were going solid-state in the 70s, at least on AM.  a station I knew in northern North Dakota lost the filter choke in an old Continental using 4-400s, so they had a nasty hum for a year, unobtanium.  I dropped in one day around 1978 when the noise cleared, and they had a new Gates up.  banks of TO-3 transistor amps off the exciter, blow some, plug more in. believe it was rated 5KW, but they only had a kilowatt of cards in due to their license.  all commercial transmitters are custom-order and built when ordered.
Logged
Pages: Prev 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!