Re: [TenTec] Tuner and amp

[Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>]

I have my old favorite being a Heath SB-610 that I use.  I just wish these 
things were still made and folks would use them.  I would expect that some 
of the new amps might not look so good.   That is assuming folks would learn 
to know what they are looking at.  I believe the bands would be a good bit 
cleaner.
73
Bob, K4TAX


----- Original Message ----- 
From: "Scott Harwood" <scotth@hsc.edu>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Saturday, February 25, 2006 6:30 AM
Subject: Re: [TenTec] Tuner and amp


> Woops!  Thanks for the correction, Bob.  I should have said "using the 
> TUNE and LOAD controls as per the manual."  My purpose was to point out 
> the usefulness of a monitor scope in keeping a signal linear.
> Regards,
> Scott K4VWK
> ---------- Original Message ----------------------------------
> From: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
> Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> Date:  Fri, 24 Feb 2006 22:28:50 -0600
>
> > Right way and wrong way.  First be sure you are on the correct antenna and
> > the SWR is 2:1 or less.  Be sure the amp bandswitch is on the correct 
> > band.
> > Also, preset the TUNE and LOAD controls per the suggested values in the
> > manual.
> >
> > For amps like the Centurion apply an amount of drive, 10 to 30 watts, and
> > adjust TUNE and LOAD controls, in that order, for max output.  Continue by
> > increasing the drive and touching up tuning and load controls for max 
> > output
> > until maximum rated plate current {never exceed 800 ma absolute max}and
> > maximum rated grid current {260 ma max} are obtained.  Do not apply more
> > drive if either of these maximum values are reached.  TUNE controls plate
> > current and LOAD controls grid current.  If you wish to operate at lower
> > power then reduce the drive to attain the power you desire.  Do not retune
> > the amp.  Let the transceiver ALC do its job and control power for SSB or 
> > CW
> > operation.
> >
> > If you do not have adequate drive to get the amp to maximum values of 800 
> > ma
> > plate current and 260 ma of grid current, then apply all the drive you 
> > have
> > and tune for max output but never so as to exceed the max values for plate
> > and grid.
> >
> > 73
> > Bob, K4TAX
> >
> >
> >
> > ----- Original Message ----- 
> > From: "Scott Harwood" <scotth@hsc.edu>
> > To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> > Sent: Friday, February 24, 2006 10:51 AM
> > Subject: Re: [TenTec] Tuner and amp
> >
> >
> >
> > Bob:
> >
> > I also have an Orion II and Centurion.  I tune the Centurion to resonance
> > using the Orion TUNE button.  I then use a monitor scope with triangle
> > pattern to adjust the Centurion Load control and Orion audio drive to 
> > obtain
> > max linearity.  The Centurion output leds read around 600 watts out on ssb
> > voice.  Don't know how proper this is, but works for me.  If anyone out
> > there has a better method, let us know.
> >
> > Scott K4VWK
> > ---------- Original Message ----------------------------------
> > From: "Chortek, Robert L" <robert.chortek@berliner.com>
> > Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> > Date:  Fri, 24 Feb 2006 08:31:35 -0800
> >
> > > I have an Orion II and a Centurion, which work very well together. No
> > > surprise there, hi.
> > >
> > > What does it mean to tune up the linear as normal with maybe 50-75 watts
> > > and "then adjust the ALC adjustment until the power output goes to
> > > maximum."  I don't understand the quoted part and I will probably be
> > > embarrassed when I get an answer!
> > >
> > > Thanks for the help,
> > >
> > > 73,
> > >
> > > Bob/AA6VB
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> >
> >
> >
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