The Ig will remain low and nothing will trip if during tuning you
continue to increase LOADing as you tune. Watch the grid current, as it
hits 300mA, turn the LOAD control more clockwise to bring it down, then
re-peak TUNE.
The amp will run legal limit with <300mA Ig if you have a reasonable
load connected.
WB2WIK/6
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
On Behalf Of Dave Weiss
Sent: Tuesday, February 16, 2010 3:25 PM
To: Roger
Cc: amps@contesting.com
Subject: Re: [Amps] Ameritron AL-1500
The AL-1200 has protective circuitry for over Grid current and you can
add
an over grid protective circuit option which I did but Mike from
Ameritron
said wasn't necessary. I get near 350MA during tuning and the unit goes
into standby and then you have to toggle the operate /standby switch;
all is
then normal.
Bothe are great amps, I suspect that the 1200 is more forgiving
(personal
experience) HI HI.
73 All, BTW a great thread.. Shon, you will learn from this group.
Dave K3FT
On Tue, Feb 16, 2010 at 6:13 PM, Roger <sub1@rogerhalstead.com> wrote:
>
>
> Shon Edwards wrote:
> > I'm a bit new to HF and am looking at getting an Ameritron AL-1500
amp
> for
> > some high power. I am also going to get the Hy-Gain AV-18HT to help
me
> > punch out that power. I'm really interested in doing some DX work.
Does
> > anyone have any advice on someone getting a high-power amp for the
first
> > time? I want to get a lower-priced amp, but high power.
> I can offer a personal opinion: I think the most bang for the buck is
> probably the AL1200. It's a legal limit amp with one of the most
rugged
> tubes on the market which is the most rugged tube in the normal ham
> market place. Just the thing to handle the mistakes of new comers and
> senior moments alike. I don't know what it has in it for protective
> circuitry, soft start, or full break in (if you operate CW) I'm not
> particularly fond of Ameritron amps, but OTOH they offer what I think
is
> quality for the money and have a full range of amps although I'd only
> consider the AL1200 and AL1500 for legal limit with relatively heavy
> duty power supplies.
>
> They are pretty much "read the manual", then plug and play.
>
> 73 and good luck,
>
> Roger (K8RI)
> > I'm kind of a
> > "Panasonic" guy. I like to buy something that is a work horse and
that
> is
> > pretty decent quality, but isn't the top of the line (Usually you're
not
> > paying for much extra at the high end of things - a lot of money
usually
> > doesn't go a long way after a point). I'm going to usually be doing
SSB
> 160
> > - 6 M. Not sure how much speech processing I will be doing. What
would
> be
> > recommended? Is there any more info on my situation I should be
giving
> to
> > help get advice in my decision? Thanks for any help.
> >
> > Best regards de KO3U, Shon, sre.1966@gmail.com
> >
> >
> >
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
--
Dave K3FT
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|