[Johnson] 32V-2 with linear

Peter Markavage manualman at juno.com
Thu Jul 6 17:33:48 EDT 2006


Don't remember ever seeing or hearing about a SSB-2000. SSB-1000 rings a
big bell and it only takes 3 watts to drive it. With the 32V2 driver, it
sounds like you'll be wasting a lot in heat in the attenuator. 

Pete, wa2cwa

On Thu, 6 Jul 2006 13:41:26 -0700 (PDT) Glen Zook <gzook at yahoo.com>
writes:
> I am not familar with the Eldico SSB-2000.  What are
> the drive requirements?
> 
> The Thunderbolt will definitely require an attenuator
> between the 32V-2 and the linear.
> 
> Since you cannot put out more than 375 watts of
> carrier on AM with 100% modulation I wonder if adding
> the linear amplifier after the 32V-2 is really going
> to be "worth it".  You are going to have to "throw
> away" a lot of power in the attenuator to keep the
> 32V-2 from harming the Thunderbolt to get about a 4 dB
> maximum increase in output power.
> 
> In most cases the 100+ watts from the 32V-2 is going
> to work anything that 375 watts will work.
> 
> Glen, K9STH
> 
> 
> --- w4rl at bellsouth.net wrote:
>  
> I have a 32V-2 paired with an A-4 and wish to drive
> (AM mode) either a Johnson Thunderbolt or Eldico
> SSB-2000 that I have.   Which one would you use and if
> you don't mind, why.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Glen, K9STH
> 
> Web sites
> 
> http://home.comcast.net/~k9sth
> http://home.comcast.net/~zcomco
> 
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