[AMRadio] SB-200 on AM

[John]

The math just isn't working out for me on this.  The DX-60 doesn't 
usually put out more than 15 watts of resting carrier.  Even if it is 
changed to pure Screen Grid modulation with no controlled carrier, 15 
watts x 4 (100 percent modulation) gives the 60 watts of pep that the 
6146 will deliver cleanly in that configuration.  The SB-200 will 
simply not be sitting at 200 watts with 15 watts in.

John

-----Original Message-----
From: Robert Lawson <w4rl at bellsouth.net>
To: amradio at mailman.qth.net
Sent: Fri, Jan 28, 2011 4:52 pm
Subject: Re: [AMRadio] SB-200 on AM


John and Fellas,

Off note, personally I don't think I've ever heard a SB-200 being 
driven
by a DX-60 on AM sound badly at approximately 200 watts carrier.  Of
course the DX-60 does not run plate modulation.  But that setup sounds
great to my ears.

Robert W4RL Pensacola FL


On 1/28/2011 4:20 PM, JAMES HANLON wrote:
> John,
>
> I have good success with my SB-200 with as much as 200 watts carrier 
out.  It
looks good on a scope, no noticeable compression of the positive peaks, 
and I
get good reports on the air.  I drive it from low power rigs like my 
National
NTX-30/NSM or my Harvey Wells TBS-50D.
>
> Jim, W8KGI
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