[ARC5] ARN-6 or ARN-7 Info Wanted

[J. Forster]

Does anyone have a link for or a scan of the ARN-6 or ARN-7 ADF. The ADF
version of the MN-26 would also do.

I'm looking for:

The schematic of the Rx input circuits where the loop and sense antennas
are combined and switched (chopped).

The theory of operation pages for that circuit.

Also, any links to a LF or MF DF setup that uses a sense antenna and
phasing network or crossed-loops w/ a goniometer and sense antenna to make
a loop unidirectional, rather than bi-directional....  eliminating false
nulls.

Thanks,

-John

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