HRWB 262 - ARRL Technical Editor Conrad Trautmann N2YCH
May 5, 2026 - 03:00:06
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HRWB 256 - Tube Gear with Grayson Evans KJ7UM
In this episode, Grayson Evans, KJ7UM, joins us again to talk about designing and building ham radio gear with tubes, or as he refers to them: thermatrons. Grayson is the author of Hollow-State Design, a book all about t...
About This Episode
HRWB 256 - Tube Gear with Grayson Evans KJ7UM is an episode from Ham Radio Workbench Podcast by HamRadio Workbench. In this episode, Grayson Evans, KJ7UM, joins us again to talk about designing and building ham radio gear with tubes, or as...
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Episode Details
Published Feb 10, 2026, 02:36:07 long, audio available.
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