[Boatanchors] Heath SB-200 for AM?

[peter markavage]

I've been running a SB-200 and Johnson Courier on AM for about the last
15 years. Both use a pair of 572B's in the final. With approx. 20 watts
of drive, output from the SB-200 is about 150 watts. Given the type of
tubes of used in the final, I wouldn't push them much higher than that.
Tube life, among other things, would most likely be shortened. SB-220, or
a quad set of 572B's in an amplifier, or a higher power amplifier would
provide a much higher output.

Pete, wa2cwa

On Tue, 20 Dec 2005 15:03:05 -0800 (PST) "J.D. Mac Aulay, WQ8U"
<jmac6235 at yahoo.com> writes:
> I am posting this for a digitally disadvantaged
> friend.  Please respond via the reflector or directly
> to Jim.
> 
> --- JAMES HANLON <knjhanlon at msn.com> wrote:
> 
> >  
> > Does anyone have any experience using a Heath SB-200
> > to boost the output of a low power AM transmitter? 
> > I have a National NTX/NSM combination on the bench
> > that promises to deliver about 30 to 35 watts
> > carrier, 100% AM modulated on 80 and 40 meters. 
> > Would a SB-200 be up to the job?  I figure it would
> > give me about 200 to 300 watts carrier out.
> > 
> > Thanks,
> > 
> > Jim, W8KGI