Johan Bodin wrote:
Giulio Scaroni wrote:
> So i'm planning to made an Amrad antenna, i have send a request at
> Crystalonics for high current FET.
Has anyone tried a small power MOSFET as input stage in an active
antenna? I am thinking of BS170, 2N7000 and similar transistors.
I tried a VN10KM, a VMOS by Siliconix. When adequately biased
(it is an enhancement MOS) it works, but, in my opinion, the intermodulation
products, though low, could be a bit lower (but take note that as far as
is concerned, I am a difficult man to please..:-).
I am waiting for the order of Giulio to Crystalonics to be fullfilled, so to
myself the AMRAD active whip.
73 Alberto I2PHD