[Elecraft] Amp connection - K3 and ACOM 1000

[Richard Squire - HB9ANM]

Sorry, didn't mean sending this to the reflector - here's my answer:

M    I am using a old Drake filter which works up to 52 MHz...
Unnecessary here since we are only allowed to use 100 W on 6 m anyway!
But if you can find one for that range, even - like mine - with reduced 
ratings on 50 MHz, it will certainly fit your needs since you won't 
drive your amp at more than some 60 Watts.


Mike-14 [via Elecraft] schrieb:
> What happens to 6M then?
>
> 73, Mike NF4L
>
> Richard Squire - HB9ANM wrote:
>
> > Jens, you are right: K3 + ACOM 1000 = excellent combination.
> >
> > However, I highly recommend to anyone using a tetrode amp with a 
> "swamped"
> > (i.e. untuned) input inserting of a lowpass filter BETWEEN the TX 
> and the
> > amp. See for instance:
> >
> > www.kk5dr.com/swampednetworks.htm
> >
> > (inspite of the title of the article, problems can even occur with a 
> very
> > well designed amp like the ACOM 1000)
> >
> > or google "swamped input"+filter for further info.
> >
> > VHF oscillations in the PA may damage the TX - ask a friend of mine 
> who had
> > to repair his FT1000!
> >
> > Better to be on the safe side...
> >
> > 73
> >
> >
> >
> > -----
> > Richard - HB9ANM
> >  
>
>
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-----
Richard - HB9ANM
-- 
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