|[AMRadio] Low Power AM?|
macklinbob at msn.com
Sun Nov 23 15:57:58 EST 2008
I am saying to reduce the load capacitor and maintain the dip on the plate
It's the same as reducing the coupling on a link coupled final.
----- Original Message -----
From: "rbethman" <rbethman at comcast.net>
To: "Discussion of AM Radio in the Amateur Service"
<amradio at mailman.qth.net>
Sent: Sunday, November 23, 2008 12:48 PM
Subject: Re: [AMRadio] Low Power AM?
> While the plate transformer may well handle that, you are tuning off
> resonance of the PI network. That results in tuning off the Plate dip.
> I would NOT imagine that this concept would do the 6146s any good at all.
> I would suspect that a reduction of Drive would be wiser.
> Bob - NoDGN
> Bob Macklin wrote:
> > Can't you just run at reduced input by reducing the loading? Then run
> > tube(s) at the CCS rating. The power transformer should take that.
> > Bob
> > K5MYJ
> > ----- Original Message -----
> > From: "rbethman" <rbethman at comcast.net>
> > To: "Discussion of AM Radio in the Amateur Service"
> > <amradio at mailman.qth.net>
> > Sent: Sunday, November 23, 2008 12:14 PM
> > Subject: Re: [AMRadio] Low Power AM?
> >> George,
> >> Good question! There is NO mention of RTTY operation ANYWHERE in the
> >> Apache Manual.
> >> I'm also not sure how you can safely reduce the power out put following
> >> the tuning procedures, WITHOUT doing some damage to some components.
> >> It does just fine on AM and CW. Mixed results on SSB with the SB-10.
> >> Bob - N0DGN
> Bob - NØDGN
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