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Centaur 411 Amp

To: <tentec@contesting.com>
Subject: Centaur 411 Amp
From: sales@tentec.com (Ten-Tec Inc.)
Date: Fri, 13 Dec 1996 15:28:32 Eastern Standard Time
Hello from Ten-Tec ! 

At 11:06 PM 12/12/96 -0500, you wrote:
>Hello. I am the proud owner of a brand new Centaur.  It is very VERY nice amp
>- beautiful QSK on CW!   It is a good size and looks nice sitting next to my
>rig.  I've received good signal reports on SSB, AM, and even FM on 10 m.
>
>I have one question though ...
>
>When I drive the amp in CW mode with 150 ma grid current and around 500 ma of
>plate current, the wattmeter flys off the scale when you switch to "Forward".
> To get the forward down to 600 watts, you have to cut the drive way back to
>around 75 ma grid, 250 ma plate.  I'm only driving the amp with 70 watts or
>so from my transceiver.
>
>Is my meter calibration off?  Anyone else out there experience this?  Any
>thoughts?

Yes, the wattmeter is out of calibration.  If you don't have another
wattmeter to calibrate it against, tune it up for max. output on 20 or 40
meters into a dummy 
load (you should be putting in a full 100 watts after tune-up).  The adjustment
screw (small phillips head) is accessible from behind the amp.  It's a small
hole
just below and left of the serial number.

Turn screw counterclockwise to adjust wattmeter downscale.  Only turn it
maybe a half
turn at first, then adjust - it will go quickly from full scale deflection
to reading
under !  Also, don't adjust it with the amp keyed in transmit.  Key down,
read, key 
off, adjust, etc.  

Thanks, and glad you're enjoying your new amplifier!

73, Scott Robbins W4PA, Ten-Tec 
>
>Thanks
>
>73s
>
>Bob Dianetti, WB2JGH
>
>
>--
>FAQ on WWW:               http://www.contesting.com/tentecfaq.html
>Submissions:              tentec@contesting.com
>Administrative requests:  tentec-REQUEST@contesting.com
>Problems:                 w9tw@contesting.com
>Sponsored by:             Akorn Access, Inc & KM9P
>
>
>


--
FAQ on WWW:               http://www.contesting.com/tentecfaq.html
Submissions:              tentec@contesting.com
Administrative requests:  tentec-REQUEST@contesting.com
Problems:                 w9tw@contesting.com
Sponsored by:             Akorn Access, Inc & KM9P

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