4127Re: [loopantennas] Balanced Antenna Amplifiers
- Oct 1, 2007Hi Chris,
Perhaps Lyle Koehler K0LR's webpage is the one. Scroll down to "Balanced
Loop Preamp" for one circuit similar to your description.
----- Original Message -----
From: "Chris Trask" <christrask@...>
To: "Loop Antennas" <firstname.lastname@example.org>
Sent: Monday, October 01, 2007 8:28 AM
Subject: [loopantennas] Balanced Antenna Amplifiers
> 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
> tuning. I remember having made a comment about adding a transformer
> 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
> person who earlier made that avialable would do so again.
> ,----------------------. High Performance Mixers and
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