[Amps] New Amplifier 2.4 KW LDMOS

[w8hw at comcast.net]

Hello Charlie,

Sure Charlie, glad to help. Bands are 6-160 Meters. I am including some 
pictures for you. As you can see, I have not done the lettering yet. I went 
with the 2.4 KW amp from the Russian guy and throttled it back to 1.5 KW 
out.  People say that his Low pass filters are better than W6PQL's, I can't 
speak for that as I have not had W6PQL low pass filters. Think of it this 
way, you are building a kit WITHOUT both instructions and all of the parts. 
This will be more "HOMEBREW" than you think. I am not totally happy with my 
lay-out but it works well, but I now know how I would have liked to lay it 
out. NOTE, I put the fans on shock absorbers to minimize the noise to a low 
level while keeping the air flow high.

Now I am thinking about selling one of my amps as I don't need three (3) 
amps. In addition the the LDMOS amp, I also have a Ameritron AL-1500 and a 
Kenwood TL-922. Both have been rebuilt power supplies, solid state "Soft 
Start" added, Operate 10-160 Meters and the AL-1500 also has new tube with 
less than 10 hours on it.

Keep in touch and let me know how your project is going.

73, Bruce, W8HW
======================

-----Original Message----- 
From: charlie carroll
Sent: Sunday, April 09, 2017 16:58
To: w8hw at comcast.net
Subject: Re: [Amps] New Amplifier

Bruce:
Maybe I missed it in another email, but can you be more specific as to
the characteristics of your ldmos amp?
I'm getting ready to launch off on one of my own based on the w6pql
info.  I'm looking for any other folks that have already taken the same
path as potential sources of info.

thanks

73 charlie, k1xx

On 4/9/2017 4:41 PM, w8hw at comcast.net wrote:
> Hello Cathy,
>
> Greetings from sunny south Florida. Thank you for your email. The cost of 
> building this amp was only around $2k, it was a love of building. I am 
> thinking about tearing it down and building it a different way, but not 
> sure on that as it works too well to dissemble it for just playing.
>
> I do have other amps such as the AL-1500 and the Kenwood TL-922. I have 
> rebuilt both of these amps by rebuilding the power supply, Replaced the 
> tubes on both amps about  a month a go and many other stuff, so both amps 
> are as good as new and work great. Why did I build the LDMOS amp, well 
> that was just for love of the sport as I love building and always have. 
> Additionally I am a DXer and operate all bands and all modes. Please feel 
> free to visit my QRZ page.
>
> Again, thank you for your email. I always enjoy your comments.
>
> 73, Bruce, W8HW
> ===============================
>
>
> -----Original Message----- From: Catherine James
> Sent: Sunday, April 09, 2017 16:20
> To: amps at contesting.com
> Subject: Re: [Amps] New Amplifier
>
>
> As Jim says, for $7000, it should be capable of 1500 watts RF out for 
> hours with a brick on the key and no damage or shortened lifetime.
>
> If it can't do that, why pay so much when there are far cheaper options? 
> Heck, in what way is it superior to an AL-82 or AL-1500 at half the price, 
> much less the higher-quality tube-based options available?
>
> 73,
> Cathy
> N5WVR
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