4128Re: [loopantennas] Balanced Antenna Amplifiers
- Oct 1, 2007
> Hi Chris,Yes, it was the very first schematic in:
> Perhaps Lyle Koehler K0LR's webpage is the one. Scroll down to "Balanced
> Loop Preamp" for one circuit similar to your description.
> > About a year ago we had a lengthy discussion about active antenna
> > amplifiers, and someone posted a URL for a balanced amplifier that had a
> > pair of JFETs followed by a pair of NPNs. I think it had four varactors
> > for tuning. I remember having made a comment about adding a transformer
> > between the JFETs and the NPNs to improve the gain and the even-order
> > distortion. Somehow, I mananged to misplace that schematic and would
> > like to ask if the person who earlier made that avialable would do so
> > again.
> > Chris
Thank you for reminding me.
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