[amsat-bb] Re: ARR Preamp Documentation
n4qwf1 at gmail.com
Tue Jan 2 18:15:09 PST 2007
Ar2 Communications Products
P.O. Box 1242
Burlington, CT. 06013
I bought replacement transistor from them and they were first class to
deal with. Good luck. 73's << John
On 1/2/07, Mark Brueggemann K5LXP <brueggemail-k5lxp at yahoo.com> wrote:
> Poked around the web for a while and didn't see any downloadable
> data on ARR preamps. I am trying to find out what the exact
> DGFET/BPT/GaAsFET the 144 and 430 models use, and if the
> DGFETs/BPT/GaAsFET's are interchangeable. I anticipate blowing
> them up when I get my sat setup going soon, and I would like to order
> up some spare devices (exact replacements or suitable substitutes).
> I have the PxxxVDG's but I'm reading that the DGFET and bipolar
> versions are less ESD fragile than the GaAs ones albiet less gain.
> Is there an advantage to one over the other in practical ham
> satellite applications?
> Mark K5LXP
> Albuquerque, NM
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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