[Amps] Input impedance question

Dave M slash_dot at msn.com
Tue Jul 27 11:14:33 PDT 2010


Yes I expected that , thanks Jeff , just in the component selection phase right now , was going to use compression trimmer caps and toroid coils for the input and tune it when I got everything together , Just going with 3 Bands , 80 40 and 20 , to keep everything FAIRLY simple


......................................................................................................
And, like this insubstantial pageant faded, 
    Leave not a rack behind. We are such stuff 
    As dreams are made on, and our little life 
    Is rounded with a sleep.
 
 
Shakespeare : The Tempest
Prospero to Ferdinand Act IV scene 1



 

> From: keepwalking188 at yahoo.com
> To: slash_dot at msn.com; amps at contesting.com
> Subject: Re: [Amps] Input impedance question
> Date: Tue, 27 Jul 2010 13:08:34 -0500
> 
> Dave,
> 
> Ballpark is right. You will have to hand tune it once the thing is together 
> and running at power. The 3x will run somewere in the 20-40 ohms range but 
> in the GG, there is a tremendous dependence on the output tune on the 
> input.
> 
> 73/jeff/ac0c
> www.ac0c.com
> 
> 
> --------------------------------------------------
> From: "Dave M" <slash_dot at msn.com>
> Sent: Tuesday, July 27, 2010 12:29 PM
> To: <amps at contesting.com>
> Subject: [Amps] Input impedance question
> 
> >
> >
> > I am slowly putting together the parts for a 3 hole GI7BT amp ,GG and 
> > tuned pi network input , I have the PS and most of the RF deck parts 
> > acquired and am ready to design the tuned input , can anyone "ballpark" 
> > what I can expect to see at input?
> >
> > ......................................................................................................
> > And, like this insubstantial pageant faded,
> > Leave not a rack behind. We are such stuff
> > As dreams are made on, and our little life
> > Is rounded with a sleep.
> >
> >
> > Shakespeare : The Tempest
> > Prospero to Ferdinand Act IV scene 1
> >
> >
> >
> > _______________________________________________
> > Amps mailing list
> > Amps at contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> > 
> 
 		 	   		  


More information about the Amps mailing list