[Amps] Pair of SB-220s

[DF3KV]

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
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