Hi Jason. Never had a 425, so can't add anything. BUT, the Mouser web is
very detail.
You may have to take the old fan out and measure it for a match. Wish I had
more
info. 73 Josh
----- Original Message -----
From: "Jason Cooper" <jbear45@msn.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, March 07, 2005 3:50 PM
Subject: Re: [TenTec] 110 vs 240
> Josh,
> Read your last note with interest. I just acquired a Titan 425 that has
> been sitting for around 15 years and am carefully going through it before
> applying power. I have read in some threads that the Titan fan is quite
> noisy. Do you have any information as to whether or not the fan you have
> just described will work in the Titan 425. If not maybe you or other
> members may have some suggestions. I will probably post another note Re.
> Titan 425 mods.
> Thanks,
> Jason KN7AZ
> ----- Original Message -----
> From: Josh<mailto:jkelly@hiwaay.net>
> To: Discussion of Ten-Tec Equipment<mailto:tentec@contesting.com>
> Sent: Monday, March 07, 2005 11:02 AM
> Subject: Re: [TenTec] 110 vs 240
>
>
> Hi Joel. This is a HOT thread. Several have ask about the Centaur
>
> fan replacement. The one I used is the Mouser part #5912-4800X.
>
> 57.1 CFM @ 1750 RPM. (www.mouser.com<http://www.mouser.com/>). I think
> the key is
>
> 1750 RPM, most are 3100. Works well for me, but less CFM's will
>
> probably work FB too. As to power, I do not have a good reference.
>
> The 811's were soft when I got the Centaur used. I run the 572B's at
>
> 300 to 500 wts. If more is needed I go to the Titan III. The 572B's
>
> are a matched set of 3, Taylor from RF Parts. Hope this helps.
>
> 73 de Josh, N4VB
>
> ----- Original Message -----
> From: "joel hallas"
> <jrhallas@optonline.net<mailto:jrhallas@optonline.net>>
> To: "Discussion of Ten-Tec Equipment"
> <tentec@contesting.com<mailto:tentec@contesting.com>>
> Sent: Monday, March 07, 2005 9:48 AM
> Subject: Re: [TenTec] 110 vs 240
>
>
> > Josh,
> >
> > Can you please provide the details on the quieter fan?
> >
> > I'd also be interested in the results you've obtained with the 572s.
> > I've seen conflicting stories regarding the benefits and am still
> > running with 811As here. Did you take accurate before and after
> > measurements? Also wonder what brand 572s you had good luck with?
> >
> > BTW, I run my Centaur on 230 V for all the reasons described so far. I
> > ran a dedicated drop from a 240 V fuse pair to the shack and only power
> > the amplifier with it. I see no nasty effects from keying the amp such
> > as lights dimming, or change in frequency that I would expect if I ran
> > from a shared 115 V drop.
> >
> > Thanks and 73, Joel, W1ZR
> >
> > Josh wrote:
> >
> >>Hi Tim, this is Josh in Alabama, N4VB. I made several changes to my
> >>Centaur.
> >>
> >>1.. change out noisy fan... 2... install new 572B's.... 3..Move over
> to
> >>240V.
> >>
> >>Now it runs much more quiet, cool and more pwr. I also have a Titan
> III
> >>with
> >>
> >>same ac plug for both. 73 es DXUPONU, Josh
> >>
> >>----- Original Message -----
> >>From: "Tim _W1WCI" <kb1gfv@arrl.net<mailto:kb1gfv@arrl.net>>
> >>To: <tentec@contesting.com<mailto:tentec@contesting.com>>
> >>Sent: Sunday, March 06, 2005 6:40 PM
> >>Subject: [TenTec] 110 vs 240
> >>
> >>
> >>
> >>
> >>>Just added 240 volts to the shack.
> >>>
> >>>I am wondering if rewiring my Centaur for 240 volts would change or
> >>>improve performance?
> >>>
> >>>If so I would love an explanation of the theory behind any improvement
> >>>or efficiency.
> >>>
> >>>Thanks for any help.
> >>>
> >>>73
> >>>Tim
> >>>W1WCI
> >>>_______________________________________________
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> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >>_______________________________________________
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> >>
> >>
> >>
> >
> > _______________________________________________
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> >
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> >
> >
>
>
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