LF: Antenna Noise Canceller

["PY3CRX PY2PLL" <py2pll@py.qsl.br>]

Hi:

Does anybody remember an ANC circuit for LF that was published on a 73
Magazine some years ago? It uses several opamps. It's not the canceller that
uses some J-Fets X Toroidal transformers.

I'm looking for a copy of such article. Mine was lost when I moved to my
actual home.

Thanks in advance;

73
Marcus
PY3CRX/PY2PLL
S. B. do Campo - GG66rf
http://py.qsl.br
Active from "DC" to 24GHz