The ARRL Contest Update for May 13, 2009 included a mention of Dallas Lankford and a link to a collection of his writings on various technical topics, including several pieces on the JRC NRD-525 receiver. This struck me with a blast of nostalgia.
Though we never met, Dallas and I had exchanged letters (not emails, mind you, but real, honest-to-God handwritten letters!) when I worked for JRC about filter modifications to the NRD-525/535. Almost all of it went straight over my head as I am merely an appliance operator compared to Dallas, but with his help I managed to successfully install some Collins torsional mechanical filters in my NRD-535 by changing out a bunch of the surface-mount components that comprised the filters' input and output impedance matching networks. It was a big accomplishment for me, even though I had to butcher up a perfectly good CFH-36 filter board...
I lost touch with Dallas after I left JRC, but I have copies of all of his letters in my file cabinet, a reminder of a great gentleman and maestro of the radio arts. The above linked files are required reading for anyone who wants to dig into his NRD-525.
Field Day Plans Coming Together
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Thanks to the due diligence and the yeoman efforts of Dave KD2FSI, our
Field Day location has been secured. We are returning to Spring Lake Park,
which i...
15 minutes ago
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