[Milsurplus] What's the skinny on this?

Richard Brunner brunneraa1p at comcast.net
Tue Jul 14 21:17:10 EDT 2009


Very interesting!  I had the French one, hated it, and it is quite
different.  The French version has three 2E22's in parallel, with
suppressor modulation for AM, and I think MCW.  The design was poor in
that the suppressor voltage for AM was only -45 volts, when it should
have been about -125 volts.  The result was that RF output decreased
only about 10% when going from CW to AM, when it should have gone down
about 75%.  Linearity was probably bad, but it didn't sound bad.  I
think they did it deliberately to meet design specs.  There was also
unacceptable attenuation of received signals through the amplifier.
Other than that, it was well built.

Richard, AA1P

> Hi Folks,
>  Item 110309657244 at the usual E place.
> 
> This one is German manufacture.I was aware of a French made PA for the 
> GRC-9.Is this the same? And did the US manufacture a PA for the 
> AN/GRC-9 ? And if so, Where are they? ( or,if not,Why not?).
>  Always curious,
>                        Jay KE6PPF




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