I have my ALS600 for over 3+ years without any problems. Any SWL greater
than 2.5 caused  the protection to kick in. I usually run 450 - 500 W. I
have run close to 600W when trying to bust a DX pile ups. Bands used 80 - 10
on SSB never on CW.


John  KC2QJB

John
 

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Alan R. Downing
Sent: Thursday, December 05, 2013 5:01 PM
To: [log in to unmask]
Subject: Re: Ameritron ALS-600 amplifier

I think that the ALS600 is just too fragile.  My friend Steve, N9HE, has had
3 failures like mine.  In fact, Steve shipped one of his ALS600's back to
Ameritron along with mine for the same exact repair.

As for a lightning strike, I don't think the culprit was lightning, as the
only time my ALS600  amp was hooked up to an antenna was when I was actually
using it.  When I wasn't using the amp, it was totally disconnected from
everything, and put in my closet.

73


Alan R. Downing
Phoenix, AZ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Michael Thurman
Sent: Thursday, December 05, 2013 2:06 PM
To: [log in to unmask]
Subject: Re: Ameritron ALS-600 amplifier

that is completely unpardonable. unless you took a lightning strike, it = is
obvious that the amp was a lemon, as any amp worth owning should = protect
itself no matter what you do., even transmitting into an open or = shorted
coax should do nothing more than she the amplifier down, and I = wouldn=92t
own anything that was so weak and unreliable. This is an area = that I
imagine tube finals still beat solid state hands down, although = having
never owned an amp, and likely never to own one, i wouldn=92t = know.
On Dec 5, 2013, at 2:51 PM, Alan R. Downing <[log in to unmask]> wrote:

> I have had an ALS600 for about a year, but it was mostly a backup amp.
> During the year that I had it, it got very little use.  About a month 
> =
ago, I
> discovered that it had lost all output.  Until it went south, it would 
> =
put
> out about 550 watts.  It turned out that I had blown the finals, which 
> =
was
> somewhat surprising to me as it was feeding an antenna that had a SWR 
> =
of
> less than 1.1 to 1.  The repair bill came to about $400 not including  
>shipping.
>=20
> Since I knew that the amp had never been abused, I decided that I =
didn't
> want it around anymore so I sold it for $700.  My experience with it =
leads
> me to believe that it was too finicky, not suitable for even a backup.
>=20
> If you have any further questions, just drop me a private email.  My =
email
> address is good on qrz.com
>=20
>=20
> Best 73
>=20
>=20
>=20
> Alan R. Downing
> Phoenix, AZ
>=20
>=20
> -----Original Message-----
> From: For blind ham radio operators =
[mailto:[log in to unmask]]
> On Behalf Of Fred Adams
> Sent: Thursday, December 05, 2013 11:58 AM
> To: [log in to unmask]
> Subject: Ameritron ALS-600 amplifier
>=20
> I believe some of you guys are using or have used the ALS-600 =
amplifier and
> I would appreciate any info you could give me on it.  I have heard =
that it
> shuts down with the slightest SWR, is this correct?  Also, about what 
> =
how
> much power does it put out.  I will appreciate any info good or bad as 
> =
I
> may be interested in one.  Also price estimate new and used if you =
know.
> Can the top section set on top of the power supply and is it very =
blind
> user friendly?   Thanks much for any info. =20