amdx wrote:
Hi All,
The article below shows a low distortion antenna amp for BCB and SW.

http://www.kongsfjord.no/dl/Amplifie...And%202N3053%2
0Amplifiers.pdf


I know the lossless feedback based on Dr. Norton (Anzac Electronics) since
1977, when a German M. Martin DJ7VY published in CQ-DL a two stage preamp
for 145/440MHz with BFT66 and BFR34A.
I modified this amp for my thesis on phased array ultrasonic flaw detectors
for lower frequencies. I got much better performance than with the Plessey
SL531. F"=1.9dB, and phaseshift change of less than 1deg. over 102dB dynamic
range until +16dBm O/P.
--
ciao Ban
Apricale, Italy