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Monthly Archives: September 2014
Colorado Color: Original Video on Vimeo
Here’s the original Colorado Color video, now hosted on Vimeo. For the story as to why this is so, click here. Colorado Fall Color 2014 from David Casler on Vimeo. Golden aspens along US Highway 550, south of Ouray, Colorado, … Continue reading
Posted in Fall Color, Ouray County, Video
Tagged Vimeo
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Colorado Color 2014: Goliath Won (Poor David)
Poor David (that’s me). I put the pebble right smack on Goliath’s (YouTube’s) forehead, but Goliath just laughed and did what he (they) wanted to do anyway. So…. I’m trying this again. I put this video up on YouTube last … Continue reading
Posted in Fall Color, Ouray County, Video
Tagged ironton colorado
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Amateur Extra Lesson 5.3: Digital Logic
Here’s your video introduction to Section 5.3, Digital Logic, found in the ARRL Extra Class License Manual for Ham Radio. After you have watched the video, read Section 5.3, and studied the related test questions, you can return to the … Continue reading
Posted in Amateur Extra Class License Training, Ham Radio blog entries, Video
Tagged and gates, cmos logic, digital logic, multivibrators, not gates, or gates, ttl logic
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Track Maintenance Vehicle for D&SNGRR in Silverton, Colorado
Track maintenance vehicle on Durango and Silverton Narrow Gauge Railroad. Silverton, Colorado. Little one-man vehicle that had to be manhandled off the track onto the side track. Video taken on Wednesday, 24 Sept 2014, in Silverton, Colorado. I used my … Continue reading
Posted in San Juan County, Video
Tagged Durango Silverton NGRR, silverton colorado
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Extra Class Worked Example, Question E5A16
Frank Dambach, KK6GPI, asked for a detailed, worked-through example of determining the resonant frequency of an RLC circuit. He chose Extra question E5A16. The question has to do with determining the resonant frequency of a parallel RLC circuit for R=33 … Continue reading
Fall Color Colorado! Ironton Park
Colorado fall color! Taken in Ironton Park along US Highway 550, between Ouray and Red Mountain Pass. Yes, this is Exhibit A as to why I live in Colorado! I experimented with a new (to me) tripod with a fluid … Continue reading
Posted in Fall Color, Ouray County, Video
Tagged Ironton Park
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Amateur Extra Class Lesson 5.2: Display Devices
Here’s your video introduction to Section 5.2, Display Devices, in the ARRL Extra Class License Manual for Ham Radio. The section covers LEDs, LCDs, CRTs, and CCDs. Watch the video to see what these acronyms mean! To return to the … Continue reading
Posted in Amateur Extra Class License Training, Ham Radio blog entries, Video
Tagged CCD, CRT, LCD, LED
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Field Day: Things to Bring Next Time
After attending the Montrose Amateur Radio Club‘s Field Day event atop Sunset Mesa in Montrose, Colorado, I jotted down a few things to bring next time. Maybe this list can jog your memory too. First, and a big one: An … Continue reading
Amateur Extra Class Lesson 5.1: Semiconductor Devices
Here’s your video introduction to Section 5.1, Semiconductor Devices, in the ARRL Extra Class License Manual for Ham Radio. After you’ve reviewed the video and studied the material in the text, you may return to the list of Amateur Extra … Continue reading