[Lowfer] Re: New antenna

[Alberto di Bene]

Ed Phillips wrote:

>
>         Wonder if anyone has experimented with using some of the power VMOS or
> IRC Hexfets?  Many years ago Bill Oxner (?) from Siliconix gave a talk
> at Hughes in which he recommended their VMOS for really wide
> dynamic-range applications.  Used POWER devices as RF amplifiers and
> active mixers.

Yes,
   I made a test using a small power VMOS, the VN10KM, 12V at 40mA with an
heathsink. Being it a Mos-Enhancement device, where no current flows unless
you give it some polarization, you have to change a little the circuit.
It works well, maybe a bit better than the U310, I didn't perform
any formal measurement, only subjective listening.
A small bit of intermodulation is still present, though not very pronounced.
Probably, should I not be able to get hold of the CP-666, this will be the device
I will use for my antenna.

73  Alberto  I2PHD