About W4JBM

Hello! I’m Jim McClanahan, W4JBM, and welcome to my site.

For nearly four decades now, radio and electronics has been a hobby for me. And for around three decades I have been fortunate to also have that interest be a key part of my career.

I like to tinker and experiment with different circuits and ideas. I also have written several books on radio that are available on Amazon and range from test equipment to a book full of radio history oddities I’ve collected over the year.

73 de
Jim W4JBM

“With a soldering iron in one hand, a schematic in the other, and a puzzled look on his face…”

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