Bob G. Mahrenholz wrote:

Hi'
I'm needing a copy of articles on bandpass filtering using negative
mutual coupling
(a la J.W. Miller) in the February 18, 1931 issue of Wireless World and
in the December, 1936 issue of Radio Engineering magazine. Will pay a
reward.

Thanks,
Bob


Perhaps you can buy it from these people:

http://www.kellybooks.co.uk/5-Mag-Tech-WW.htm

I have never dealt with them so I don't know what kind of people they are.

Chris