[Amps] Pair of SB-220s

[Joe Subich, W4TV]

> Is this possibly the way (Wilkinson combiner/splitter) that 
> Ameritron gets 1200w out of their new (ALS-100) SS amp? 73, 

Yes, they use two ALS-600 boards with splitters in the input 
and combiners on the output.  However, instead of Wilkinson 
combiner/splitters Ameritron is using broadband devices.  The 
ALS-1300 manual (with schematics) is available on the Ameritron 
web site: http://ameritron.com/man/pdf/ALS-1300.pdf

73, 

   ... Joe Subich, W4TV 
       microHAM America 
       http://www.microHAM-USA.com 
       http://groups.yahoo.com/group/microHAM 
       support at microham.com 
   



> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Gary Smith
> Sent: Sunday, September 06, 2009 2:42 PM
> To: DF3KV; amps at contesting.com
> Subject: Re: [Amps] Pair of SB-220s
> 
> 
> Is this possibly the way (Wilkinson combiner/splitter) that 
> Ameritron gets 1200w out of their new (ALS-100) SS amp? 73, 
> Gary...wa6fgi
> 
>   ----- Original Message ----- 
>   From: DF3KV 
>   To: amps at contesting.com 
>   Sent: Sunday, September 06, 2009 11:25 AM
>   Subject: Re: [Amps] Pair of SB-220s
> 
> 
>   It will work with 1/4 coax transformers, but I would always 
> prefer wide band
>   2:1 ferrite transformers (as used in stack matches)plus a 
> variable phase
>   shifter in one channel.
>   I did that in the past with a pair of IC-2KLs all band.
> 
>   73
>   Peter
> 
>   -----Original Message-----
>   From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On
>   Behalf Of donroden at hiwaay.net
>   Sent: Sonntag, 6. September 2009 06:40
>   To: amps fourm
>   Subject: [Amps] Pair of SB-220s
> 
>   Not saying anybody WOULD,,,,,,,,,,, but if you COULD.....
>   parallel a pair of SB-220s on a single band ?
>   Wilkinson Power deviders / combiners for zero phase combining?
>   A 90 degree network on the input and opposite 90 degree on output ?
>   Run them in push-pull ( 180 degrees )
> 
>   Assuming all splitters/ combiners would be made from coax.
> 
>   Or, just use short runs of equal length coax and a coax tee 
> for the inputs
>   and accept a 2:1 drive mismatch ?
> 
>   Hummmmmmm
> 
> 
>   Don WA4NPL
>   _______________________________________________
>   Amps mailing list
>   Amps at contesting.com
>   http://lists.contesting.com/mailman/listinfo/amps
> 
>   _______________________________________________
>   Amps mailing list
>   Amps at contesting.com
>   http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps at contesting.com http://lists.contesting.com/mailman/listinfo/amps