Thread: Building a new shortwave tube radio
View Single Post
  #25   Report Post  
Old November 13th 11, 07:37 AM posted to rec.audio.tubes,rec.radio.shortwave
John Smith[_7_] John Smith[_7_] is offline
external usenet poster
  
First recorded activity by RadioBanter: Apr 2011
Posts: 987
Default Building a new shortwave tube radio
On 11/12/2011 5:55 PM, Brenda Ann wrote:


wrote in message
...


As far as I know- none of the satellites are using vacuum tubes .
That's the reality .


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------


All satellites still use these for output:

http://en.wikipedia.org/wiki/Traveling-wave_tube

Fact of the matter is, you don't need tubes in space, you already have a
much better vacuum than can ever be created on earth ... you simply need
the elements ...

Regards,
JS

Reply With QuoteReply With Quote