Hello Graham,
15 April 2017


Just to be clear, this is just the original single amp that's been
fine now for ages, not two combined.... Not sure if people are
thinking this is part of my two amps via a combiner experiments, it's
not.


Best regards,
 Chris  2E0ILY                          mailto:[email protected]




> Can only go  by the  images  in the links  I sent a while back .. I was
> wondering,  after  Andy's  last post ,

> Why not  simply  build a  copy  of the   Decca  out put  stage ,  series
> tuned cct's  and the  3 -2-1  adding  transformer
> there  must be enough  of them  about,  for the  transformers  and chokes to
> be  identified , the  same  or  similar must be  about ..
> tried and tested configuration ?

> Taking  everything , via  the  , what appears to  be , a step  up , 
> transformer , will  provide  isolation  from  the  Ae  , if you combine  at
> 50 ohms , then  everything  will  pass  back to the  amps , via the 
> combiner ,

> Could be  totally  wrong  of course, but there must of  been a  reason  for
> the  lay out ,  when  other  multi unit  pa's  used  50 ohm  combining
> networks
> but its  tried and  tested and  what's better  than  2   500w power 
> modules ? .. 3 of course ,)

> 73-G,








-- 
Best regards,
 Chris                            mailto:[email protected]