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Leo and his guest talk about the early days of radio and the basics of the electronics of the era.
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Lab Leo Tube |
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This is a one valve [tube] radio that believe it or not I constructed 48 years ago. It remained lost but was discovered again during a recent house move. The valve used is a battery R.F. pentode dating from around 1948 on a B7G base. The type number is DF91 or the American equivalent, the 1T4....
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One valve radio |
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If you’ve ever wondered what a Hamfest is, then this episode is for you. We visit Jackson Amateur Radio Club’s ‘2006 Capital City Hamfest’.
We’ve got an ARRL net being called, highlights from the Skywarn Forum, ARRL Katrina Review, an amateur radio Satellite Demonstration and lots...
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Hamfest Episode 5 ARRL Skywarn |
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The 2009 ARRL Field Day logo animated into a fun little 30 second video.
After seeing the Field Day logo this year I thought "I wonder if I can make the sun set?" One thing lead to another and this was the result. This is a low res video (1.8 MB) that can the easily emailed and shared. A link...
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animated Tech Radio ham logo Day 2009 Field Amateur Tech |
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Video shows how conditions were this morning on 18 June 2009 on 144 MHz and above. Jim/W4ZRZ opened up the band out of EM63 Alabama to the northeast. We quickly worked thru 432 then 222 MHz and then the surprise on 1.2 GHz on Voice.
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Tropo UHF Weak Signal |
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