[NLRS] Need advice: Amplification on 432 and 1296

[Zack Widup]

This is a great little amp for 1296:

http://www.taconic-add.com/pdf/technicalarticles--amplifier.pdf

Last year Kent WA5VJB was selling pc boards for this amp along with one or
two of the MRF9045's for about $30 at the CSVHFS convention. Kent told me
that if you used high-quality ATC chips in the input and output instead of
the ceramic caps, you'd probably get 50 watts out of it.

73, Zack W9SZ

On Fri, Apr 30, 2010 at 11:50 AM, David Palm <thepalmhq at gmail.com> wrote:

>
>
> Hello all,
>
> I'm looking to get some amplification on 432 and 1296 MHz.
>
> I guess 432 is relatively easy.  Looking for something in the 100 watt
> range, driven by the 10 watts from my FT-897.  Don't know if a
> built-in pre-amp is desireable--it seems to be mixed reviews on
> whether the pre-amps are worth anything, depending on the model, I
> suppose.  If anybody has a good 432 amp they're going to get rid of,
> let me know.
>
> On 1296, I'm going to have about 2 watts of drive available.  I would
> really value some advice here, since I'm much less familiar with what
> are good options.  Looking to have between 50-100 watts out.
>
> * W6PQL has a kit for a 75 watt amp using a XRF-286 for about $165 at
> www.w6pql.com
>
> * I know where I can get a couple of G4BAO boards, good for about 50
> watts apiece.  The big problem with these, it seems, is that they
> require 28 VDC with pretty hefty current.  I could probably do that in
> the shack, but I also want to be able to take this roving.  Still, the
> price per watt would be pretty good.  Maybe 28 volts on the rover rig
> isn't insurmountable (it's just two batteries, after all.)
> * Other options?  Anybody have some good advice.  Anything to sell?
>
> Thanks and 73,
>
> David  W9HQ
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