If you can get a match with the manual tuner, you're gold.  Good luck 
and it'll be fine.
Pat, K9JAUAt 09:18 PM 9/28/2011, you wrote:
>     Bob:
>
>But what about running the Ameritron al811H?
>
>Would I be setting myself up for trouble there, or should I consider myself
>to be ok if the Tentech 238A manual tuner tunes it down to a 1 to 1 SWR when
>I use the amp?
>
>I just don't want to risk damaging anything.
>
>73 from Tom Behler: KB8TYJ
>
>----- Original Message -----
>From: "Bob Tinney" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, September 28, 2011 10:02 PM
>Subject: Re: Strange Power Readings With LDG TW1
>
>
> > Tom,
> >
> > IF your internal tuner will tune it, go for it.  If you have another
> > external tuner, try that.
> >
> > Good Luck!
> >
> >
> >
> > Bob Tinney, K8LR, [log in to unmask]
> > Skype, bobtinn
> > We could certainly slow the aging process down if it had to work its way
> > through Congress!
> >
> > ----- Original Message -----
> > From: "John Miller" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Wednesday, September 28, 2011 8:45 PM
> > Subject: Re: Strange Power Readings With LDG TW1
> >
> >
> > If the tuner tunes it, I'd run it, if there's a mismatch, the radio will
> > role back and most likely, you'll know it.
> > ----- Original Message -----
> > From: "Tom Behler" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Wednesday, September 28, 2011 8:27 PM
> > Subject: Strange Power Readings With LDG TW1
> >
> >
> >> Hi, folks.
> >>
> >> Maybe I ought to go back to basic antennas 101 class, but I just found
> >> out
> >> something with my Carolina Windom 160 compact that doesn't quite make
> >> sense
> >> to me.
> >>
> >> I am testing out the antenna to see if water got back into it after the
> >> week
> >> of rain we have had here, and I discovered some strange power readings
> >> with
> >> my LDG TW1 talking watt meter.
> >>
> >> Right now, my Carolina Windom, such as it is, seems to be resonant on the
> >> lower end of 80 meters--right around 3.600 MHZ.
> >>
> >> As expected, then, when I go to the upper phone part of the band, say
> >> around
> >> 3.976 MHZ, my sWR rises dramatically to a blistering 6.0 to 1.
> >> (ouch!!!!!!)
> >>
> >>
> >> Interestingly, though, the auto tuner in the TS590 tunes the antenna,
> >> which
> >> was a bit of a surprise to me.
> >>
> >> I then took some  forward and reflected power readings with my TW1, and
> >> was
> >> told that the forward power was 102 watts, while my reflected power was
> >> 52
> >> watts.
> >>
> >> Again, this is with the auto-tuner engaged.
> >>
> >> Can someone tell me what is going on here?
> >>
> >> To be honest, I'm still a bit hesitant to use the Carolina Windom, given
> >> the
> >> water problems I have had of late.
> >>
> >> Would this antenna be safe to use on the top part of 80 meters, since the
> >> auto-tuner clearly tunes it, or am I just kidding myself here.
> >>
> >> And, could I safely use this antenna on the upper part of 75 meters with
> >> my
> >> Tentech 238A manual tuner and Ameritron
> >> AL811H amplifier?
> >>
> >> I guess I'm now a bit gun shy.
> >>
> >> 73 from Tom Behler:  KB8TYJ
> >