[TenTec] Centaur

[Carl Moreschi]

My son had my centaur for contesting for about 6 months.  I had just put
572B's in it.  The tubes lasted about 6 months.  I don't know if he had
mistuned them or not but we never saw any more power output with the 572B's.
I never saw more then 400 to 450 watts output on the centaur.  Anyway, we
switched back to 811's since they wer less expensive.  The 811's actually
seem to do a lttle better.  I don't know why that is.

Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "NJ0IP" <Rick at DJ0IP.de>
To: <tentec at contesting.com>
Sent: Saturday, December 25, 2004 2:18 PM
Subject: RE: [TenTec] Centaur


> I don't agree with that, Bill.
>
> I bought my Centaur to use as a portable contest amp.
> At the time I was usually running multi-single class, so we always had
> numerous hams working with the equipment.  Often there were inexperienced
> guys learning to contest with us.
>
> I sold the Centaur after two years because the guys kept blowing the
811A's.
> It was always only one tube that blew, but I kept replacing them in
matched
> sets.  Got to be too expensive for me, so I sold the amp.
>
> Although I haven't tried, I'm sure the amp will be more robust with 572B's
> than it was with 811's.  Yes, you spend more money "once" but then you
have
> stability.
>
> I've often regretted selling it.  I don't work the multi-single anymore
and
> the Centaur would be a good portable and backup amp for me (as single
> operator), especially with 572B's.
>
> QUESTION:  Has anybody had any negative experience using the 572B's?
>
> 73
> Rick
>
> -----Original Message-----
> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
> On Behalf Of Bill_Harris
> Sent: Saturday, December 25, 2004 8:35 PM
> To: tentec at contesting.com
> Subject: Re: [TenTec] Centaur
>
> Joel, you better off with  the 811's.  That's what the rig was designed
for.
> Putting in 572"s  will not net you enough additional power to be noticed.
> IMD products are reported to be higher as  well.  Your money ahead staying
> wit the 811's.
>
> carry on
>
> Bill Harris
>
>
> > Ron,
> >
> > Great question, and I will be watching the answers closely too. I  fried
> > an 811A  in my Centaur the other day and can  see the bottom of the
> > spare bin very clearly now!
> >
> > The big question is, when I toss my last spare 811A, should I go with
> > 572Bs or stick with 811As? The 572Bs that everyone liked from Svetlana
> > don't seem to be available any more (source?) and I wonder if the Taylor
> > 572Bs offered by RF Parts will be as good. Anyone have good luck with
> > them in a Centaur?
> >
> > Thanks for everyone's help!
> >
> > 73 & Merry Chistmas,
> > Joel Hallas, W1ZR
> >
> > Ron Feutz wrote:
> >
> > > TT'ers,
> > >
> > > I cooked a tube or tubes in my Centaur while tuning up.  Any
> > > suggestions on the best place to get replacements, and the best
> > > replacements to get?  For the price I suppose it makes sense to get a
> > > matched trio.
> > >
> > > I see RF parts has quite a selection and the prices look reasonable.
> > >
> > > 73,
> > >
> > > Ron KK9K
> > >
> > >
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> >
> >
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