[Amps] TUNER

[Jim Thomson]

Date: Tue, 12 Oct 2010 18:04:53 -0400
From: "Roger (K8RI)" <sub1 at rogerhalstead.com>
Subject: Re: [Amps] TUNER


  I wonder how one of these tuners, or input boards would work with a 
passive grid input on a Tetrode.

73

Roger (K8RI)

##  what for ?   The xcvr 'see's  flat swr anyway.  You either have a 50 ohm passive grid R
or a  200 ohm resistor.....and a 4:1  un-un.  On the big boy tubes [handles]  they use a 450 ohm
resistor and a 9:1 un-un.    In all cases the xcvr is happy, and no tuner required. 

Jim   VE7RF