One thing I've noticed, and that is much more than any of you would like,
is the poor keying characteristics on CW with power amplifiers, due to
adjustment I am sure. Often either it is harsh, or clipped off the first
dit, or it is soft, and is distracting, or I can hear a pronounced
"crash" on the first dit! Yike!

-- 
Curtis Delzer <[log in to unmask]>

On Sun, 30 Nov 2014 14:07:47 -0500
Steve Forst <[log in to unmask]> wrote:

> Howard,
> 
> There is a 7 pin din on the rear of the radio for amp connection.   The 
>   relay in the amp is 12 vdc and low current.   Not familliar with your 
> amp, but a lot of the older stuff used high voltages for keying. 
> Proceed with caution.   There is also a menu in the radio that needs to 
> be enabled to allow amp keying.
> 
> 73, Steve KW3A
> 
> On 11/30/2014 1:59 PM, Tom Behler wrote:
> > Howard:
> >
> > To be sure, you might want to get an ARB704 buffer box for this purpose.
> >
> > They are available from the usual ham equipment dealers for, I believe,
> > around $50 or so.
> >
> > Just be sure you tell the dealer what you are trying to do, so they give you
> > the correct interface cables.
> >
> > Tom Behler: KB8TYJ
> >
> >
> >
> >
> > -----Original Message-----
> > From: For blind ham radio operators [mailto:[log in to unmask]]
> > On Behalf Of Howard Traxler
> > Sent: Sunday, November 30, 2014 1:41 PM
> > To: [log in to unmask]
> > Subject: RF power amplifier with the TS-590
> >
> > Seems to me there's a connector on the back of the 590 for keying the =
> > power amp.  Should one worry about current and/or voltage employed to = key
> > the amp?  I have a Dentron Clipperton L that I'd like to use with = the 590.
> > Maybe I should have an intermediate relay to key the amp, huh? =  Any ideas,
> > please?
> >
> > The Other Howard, WA9RYF
> >
> >
> >