[Amps] SB-220: 1,800 Watts Output

[Gary Schafer]

But you can't get there with 100 watts of drive.

73
Gary  K4FMX


> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
> On Behalf Of Gudguyham at aol.com
> Sent: Tuesday, December 01, 2009 3:50 PM
> To: vic at rakefet.com
> Cc: amps at contesting.com
> Subject: Re: [Amps] SB-220: 1,800 Watts Output
> 
> As I recall Henry Radio  rated one of their "pair of 3-500" amplifiers
> at
> 3000KW input, at 60% eff. (not unlikely) that would be 1800 watts PEP
> output.....NO?
> 
> 
> In a message dated 11/30/2009 12:30:32 P.M. Eastern Standard Time,
> vic at rakefet.com writes:
> 
> Gudguyham at aol.com wrote:
> > I may be quite possible that the  Sb-220 WILL do 1800 watts PEP output
> with
> > the special Peter  Dahl transformer.  A regular SB-220 on 6 meters
> could
> do
> >  1600 PEP with a standard transformer.  Check this out
> >
> > _YouTube -  King Conversions SB220 Monoband 6M amplifier 1.5 KW+  -
> > QROKing.com_
> (http://www.youtube.com/watch?v=8c_X9C--hmM&feature=related)
> 
> Well, my SB-1000 with ONE 3-500z will produce 1100 watts output, if I
> forget to turn down
> the drive from my exciter.
> 
> The question is "for  how long will it do this?" My guess is "not too
> long!"
> --
> 73,
> Vic,  K2VCO
> Fresno  CA
> http://www.qsl.net/k2vco
> 
> 
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