I suppose it's a matter of opinion, but I have repaired several amps using
572B's I have not had any major problems getting within 10% or so on ten
mtrs. from what I had on 80 mtrs. (600-700w) from a pair . !!! and after all
, even 25-35% won't really be noticed on the other end !!!!! If you are
after the absolute maximum power then "maybe " a 3-500 might be better , but
consider the price vs. power , vs "s units " on the other end and you may
well decide that the 572B is a better value .. !!!
Just one person's opinion !!!
carl / kz5ca
----- Original Message -----
From: "Peter Frenning, OZ1PIF" <oz1pif@get2net.dk>
To: "Patrick Hoppe" <phoppe@wi.rr.com>; <amps@contesting.com>
Sent: Friday, January 03, 2003 6:12 PM
Subject: Re: [Amps] AL-572
> I don't know this specific amp, but I would never recommend any amp using
> the 572 tube for 10m, this tube is very marginal this high, and you'll be
> lucky if you get 60% of nominal output on 12 and 10. Go for something
using
> the 500z or something like it - you wont regret it.
>
> Vy 73 de OZ1PIF, Peter
>
> ********** OZ1PIF **************
> email: oz1pif(no-spam-filler)@get2net.dk
> http://hjem.get2net.dk/oz1pif
> Ph. +45 4619 3239
> Snailmail:
> Peter Frenning
> Ternevej 23
> DK-4130 Viby Sj.
> Denmark
> ***********************************
> ----- Original Message -----
> From: "Patrick Hoppe" <phoppe@wi.rr.com>
> To: <amps@contesting.com>
> Sent: Friday, January 03, 2003 7:25 PM
> Subject: [Amps] AL-572
>
>
> > I am looking at buying my first amplifier. I work primarily 10 & 15
> > meters, so an easy 10 mtr mod. Would be great. I was thinking about
> > the Ameritron, AL-572. It seemed to have a good cost / power ratio.
> > Are there any 572 users out there and if so, would you but it again?
> > Does anyone have a better suggestion?
> >
> >
> >
> > Thanks,
> >
> > Pat
> >
> > WW9R
> >
> >
> >
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