[Amps] Tube gain vs frequency

[Joe Subich, W4TV]

> This discussion would not be complete without mention of 
> tubes which actually take advantage of the transit time 
> effect - TWT's (Traveling Wave Tubes) and Klystrons. There 
> may be others too. I haven't kept up with recent technology 
> in this area.

Add to the list the Klystrode (r) or Inductive Output Tube 
(IOT) and the Diacrode.  There may be other devices that 
combine multiple technologies - like the multi stage depressed 
collector IOT (MSDC IOT) - but it's been a few years since I 
last worked with the high power UHF devices. 

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Bill, W6WRT
> Sent: Thursday, August 27, 2009 3:51 PM
> To: amps at contesting.com
> Subject: Re: [Amps] Tube gain vs frequency
> 
> 
> This discussion would not be complete without mention of 
> tubes which actually take advantage of the transit time 
> effect - TWT's (Traveling Wave Tubes) and Klystrons. There 
> may be others too. I haven't kept up with recent technology 
> in this area.
> 
> They are so different from the tubes most of us use that they 
> are a subject unto themselves. Google will find all you want to know.
> 
> 73, Bill W6WRT
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