corpus.blog
41554 blogs · [ { "id": "01a0bb77-f7ff-72c2-844d-a4fdc12b4fee", "title": "Generating low-distortion audio sine waves using a PIC and DDS techniques", "url": "https://ka7oei.blogspot.com/2013/09/generating-low-distortion-audio-sine.html", "published_at": "2013-09-12T22:06:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc1e51054", "title": "Quieting high-current switching power supplies used in the ham shack.", "url": "https://ka7oei.blogspot.com/2013/09/quieting-high-current-switching-power.html", "published_at": "2013-09-04T20:44:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc20c531f", "title": "Avoiding \"blowed up\" speakers!", "url": "https://ka7oei.blogspot.com/2013/08/avoiding-blowed-up-speakers.html", "published_at": "2013-08-14T21:44:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc2d8e1da", "title": "A circularly-polarized, \"omnidirectional\" antenna", "url": "https://ka7oei.blogspot.com/2013/08/a-circularly-polarized-omnidirectional.html", "published_at": "2013-08-05T20:13:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc2f0c29f", "title": "A \"simple, effective, yet inefficient\" solar charge controller.", "url": "https://ka7oei.blogspot.com/2013/07/a-simple-effective-yet-inefficient.html", "published_at": "2013-07-05T21:15:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc3346ecd", "title": "Resurrecting a Nikon S8100 from \"Lens Error\" death (that is, S8100 \"Lens Error\" fix)", "url": "https://ka7oei.blogspot.com/2013/06/resurrecting-nikon-s8100-from-lens.html", "published_at": "2013-06-18T23:11:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc3dd47de", "title": "Long-term observations of NiCd versus NiMH cells and how to make them last longer.", "url": "https://ka7oei.blogspot.com/2013/06/long-term-observations-of-nicd-versus.html", "published_at": "2013-06-07T22:13:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc45a7c62", "title": "Lithium Iron Phosphate (LiFEPO4) batteries revisited - Equalization of cells", "url": "https://ka7oei.blogspot.com/2013/05/lithium-iron-phosphate-lifepo4.html", "published_at": "2013-05-19T01:24:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc53dff5a", "title": "50 years since operation \"Red Line\"", "url": "https://ka7oei.blogspot.com/2013/05/50-years-since-project-red-line.html", "published_at": "2013-05-12T18:29:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc57d35a8", "title": "Not all cells are created equal! (Shunt regulation of batteries...)", "url": "https://ka7oei.blogspot.com/2013/05/not-all-cells-are-created-equal-shunt.html", "published_at": "2013-05-06T21:43:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc61222ce", "title": "Lower Courthouse Wash is full of beavers!", "url": "https://ka7oei.blogspot.com/2013/04/lower-courthouse-wash-is-full-of-beavers.html", "published_at": "2013-04-18T18:16:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc6e7b5e9", "title": "Getting \"Atomic\" (WWVB) clocks to work indoors and in weak signal areas", "url": "https://ka7oei.blogspot.com/2013/03/getting-atomic-wwvb-clocks-to-work.html", "published_at": "2013-03-28T17:43:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc76cdba4", "title": "Yes, the NIST did break a bunch of radio controlled (WWVB) clocks... Sorta...", "url": "https://ka7oei.blogspot.com/2013/03/yes-nist-did-break-bunch-of-radio.html", "published_at": "2013-03-18T18:28:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc8574edf", "title": "Teardown and analysis of a solar Powered USB charger", "url": "https://ka7oei.blogspot.com/2013/03/solar-powered-usb-charger.html", "published_at": "2013-03-03T19:56:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc8725f43", "title": "Did the NIST \"break\" a bunch of radio-controlled (WWVB) clocks?", "url": "https://ka7oei.blogspot.com/2013/02/did-nist-break-bunch-of-radio.html", "published_at": "2013-02-24T21:52:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc937ad55", "title": "An L/C audio bandpass filter using cheap audio transformers", "url": "https://ka7oei.blogspot.com/2013/01/an-lc-audio-bandpass-filter-using.html", "published_at": "2013-01-28T15:12:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdc9bb5b91", "title": "An active transmit filter for a double-sideband transmitter", "url": "https://ka7oei.blogspot.com/2013/01/an-active-transmit-filter-for-double.html", "published_at": "2013-01-27T05:33:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdca6bd17b", "title": "Two repeaters, one frequency (part 4) - Voting receivers", "url": "https://ka7oei.blogspot.com/2013/01/two-repeaters-one-frequency-part-4.html", "published_at": "2013-01-18T01:31:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcab0974f", "title": "Dang it, JBL!", "url": "https://ka7oei.blogspot.com/2013/01/dang-it-jbl.html", "published_at": "2013-01-13T22:05:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcb2da188", "title": "Making an FM Stereo modulator work properly with streaming audio sources", "url": "https://ka7oei.blogspot.com/2013/01/making-fm-stereo-modulator-work.html", "published_at": "2013-01-01T19:18:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcb5d8f22", "title": "Reducing switching supply racket (RF Interference)", "url": "https://ka7oei.blogspot.com/2012/12/reducing-switching-supply-racket-rf.html", "published_at": "2012-12-08T07:31:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcbb42e97", "title": "Resurrecting the 'Scope on the Marantz 2110", "url": "https://ka7oei.blogspot.com/2012/11/resurrecting-scope-on-marantz-2110.html", "published_at": "2012-11-11T21:19:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcbc58735", "title": "Smoke and flames from my IFR-1000S...", "url": "https://ka7oei.blogspot.com/2012/10/smoke-and-flames-from-my-ifr-1000s.html", "published_at": "2012-10-18T22:55:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcc375983", "title": "Resurrecting a CE-50A service monitor", "url": "https://ka7oei.blogspot.com/2012/10/resurrecting-ce-50-service-monitor.html", "published_at": "2012-10-05T19:21:00+00:00" }, { "id": "01a0bb77-f7ff-72c2-844d-a4fdcd2c84c5", "title": "Throwing one's voice 95 miles on a lightbeam", "url": "https://ka7oei.blogspot.com/2012/09/throwing-ones-voice-95-miles-on.html", "published_at": "2012-09-18T20:03:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd73112c6f8c", "title": "Two repeaters, One frequency (Part 3)", "url": "https://ka7oei.blogspot.com/2012/09/two-repeaters-one-frequency-part-3.html", "published_at": "2012-09-13T23:17:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7311dddfc2", "title": "Voice on a laser beam...", "url": "https://ka7oei.blogspot.com/2012/09/voice-on-laser-beam.html", "published_at": "2012-09-05T23:00:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7312d4b56b", "title": "Problems with Lithium Iron Phosphate (LiFePO4) Batteries", "url": "https://ka7oei.blogspot.com/2012/08/problems-with-lithium-iron-phosphate.html", "published_at": "2012-08-31T21:00:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7313139acd", "title": "A more practical capacitor-Powered Flashlight", "url": "https://ka7oei.blogspot.com/2012/08/a-more-practical-capacitor-powered.html", "published_at": "2012-08-14T22:35:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd731332bdd7", "title": "Two repeaters, one frequency (part 2)", "url": "https://ka7oei.blogspot.com/2012/08/two-repeaters-one-frequency-part-2.html", "published_at": "2012-08-03T00:03:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7313d12c99", "title": "QRP CW on the trail in the Wind River mountains of Wyoming", "url": "https://ka7oei.blogspot.com/2012/07/qrp-cw-on-trail-in-wind-river-mountains.html", "published_at": "2012-07-23T20:06:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7314433bdd", "title": "Solargraphs, or how to get a (sort of) color photo with black-and-white paper", "url": "https://ka7oei.blogspot.com/2012/07/solargraphs-or-how-to-get-sort-of-color.html", "published_at": "2012-07-10T00:02:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd73151430c3", "title": "Two repeaters, one frequency (part 1)", "url": "https://ka7oei.blogspot.com/2012/07/two-repeaters-one-frequency-part-1.html", "published_at": "2012-07-02T21:23:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7315eefb7e", "title": "Thoughts on the 2012 Field Day", "url": "https://ka7oei.blogspot.com/2012/06/thoughts-on-2012-field-day.html", "published_at": "2012-06-27T21:41:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7316c2b523", "title": "Field Day preparations continue", "url": "https://ka7oei.blogspot.com/2012/06/field-day-preparations-continue.html", "published_at": "2012-06-20T00:03:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7317541602", "title": "A suspiciously round sunspot...", "url": "https://ka7oei.blogspot.com/2012/06/suspiciously-round-sunspot.html", "published_at": "2012-06-06T23:39:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7317f066cd", "title": "It's hiking season again!", "url": "https://ka7oei.blogspot.com/2012/06/its-hiking-season-again.html", "published_at": "2012-06-04T22:52:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd73185e1399", "title": "The \"Cybernator\"", "url": "https://ka7oei.blogspot.com/2012/05/cybernator.html", "published_at": "2012-05-30T23:24:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7318c081de", "title": "Stared at sun, had fun...", "url": "https://ka7oei.blogspot.com/2012/05/stared-at-sun-had-fun.html", "published_at": "2012-05-23T20:22:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7319c01799", "title": "Staring at the sun - for fun!", "url": "https://ka7oei.blogspot.com/2012/05/staring-at-sun-for-fun.html", "published_at": "2012-05-18T22:18:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7319eb88db", "title": "Duck!", "url": "https://ka7oei.blogspot.com/2012/05/duck.html", "published_at": "2012-05-17T02:00:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd7319f38703", "title": "Noise on NOAA images", "url": "https://ka7oei.blogspot.com/2012/05/noise-on-noaa-images.html", "published_at": "2012-05-15T17:53:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd731ab95325", "title": "A mechanically-powered capacitor flashlight?", "url": "https://ka7oei.blogspot.com/2012/05/mechanically-powered-capacitor.html", "published_at": "2012-05-13T21:26:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd731b0f9436", "title": "No Friendship Cruise this year...", "url": "https://ka7oei.blogspot.com/2012/05/no-friendship-cruise-this-year.html", "published_at": "2012-05-11T22:58:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd731b17c8c6", "title": "Getting the rigs ready for Field Day", "url": "https://ka7oei.blogspot.com/2012/05/getting-rigs-ready-for-field-day.html", "published_at": "2012-05-11T00:55:00+00:00" }, { "id": "01a0bb7b-4635-71ba-8a8c-dd731b28c252", "title": "Intermittent GPS...", "url": "https://ka7oei.blogspot.com/2012/05/intermittent-gps.html", "published_at": "2012-05-09T22:55:00+00:00" } ] posts Claim your blog
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ka7oei.blogspot.com

2013

Generating low-distortion audio sine waves using a PIC and DDS techniquesoriginal ↗
12 Sept 2013
Quieting high-current switching power supplies used in the ham shack.original ↗
4 Sept 2013
Avoiding "blowed up" speakers!original ↗
14 Aug 2013
A circularly-polarized, "omnidirectional" antennaoriginal ↗
5 Aug 2013
A "simple, effective, yet inefficient" solar charge controller.original ↗
5 Jul 2013
Resurrecting a Nikon S8100 from "Lens Error" death (that is, S8100 "Lens Error" fix)original ↗
18 Jun 2013
Long-term observations of NiCd versus NiMH cells and how to make them last longer.original ↗
7 Jun 2013
Lithium Iron Phosphate (LiFEPO4) batteries revisited - Equalization of cellsoriginal ↗
19 May 2013
50 years since operation "Red Line"original ↗
12 May 2013
Not all cells are created equal! (Shunt regulation of batteries...)original ↗
6 May 2013
Lower Courthouse Wash is full of beavers!original ↗
18 Apr 2013
Getting "Atomic" (WWVB) clocks to work indoors and in weak signal areasoriginal ↗
28 Mar 2013
Yes, the NIST did break a bunch of radio controlled (WWVB) clocks... Sorta...original ↗
18 Mar 2013
Teardown and analysis of a solar Powered USB chargeroriginal ↗
3 Mar 2013
Did the NIST "break" a bunch of radio-controlled (WWVB) clocks?original ↗
24 Feb 2013
An L/C audio bandpass filter using cheap audio transformersoriginal ↗
28 Jan 2013
An active transmit filter for a double-sideband transmitteroriginal ↗
27 Jan 2013
Two repeaters, one frequency (part 4) - Voting receiversoriginal ↗
18 Jan 2013
Dang it, JBL!original ↗
13 Jan 2013
Making an FM Stereo modulator work properly with streaming audio sourcesoriginal ↗
1 Jan 2013

2012

Reducing switching supply racket (RF Interference)original ↗
8 Dec 2012
Resurrecting the 'Scope on the Marantz 2110original ↗
11 Nov 2012
Smoke and flames from my IFR-1000S...original ↗
18 Oct 2012
Resurrecting a CE-50A service monitororiginal ↗
5 Oct 2012
Throwing one's voice 95 miles on a lightbeamoriginal ↗
18 Sept 2012
Two repeaters, One frequency (Part 3)original ↗
13 Sept 2012
Voice on a laser beam...original ↗
5 Sept 2012
Problems with Lithium Iron Phosphate (LiFePO4) Batteriesoriginal ↗
31 Aug 2012
A more practical capacitor-Powered Flashlightoriginal ↗
14 Aug 2012
Two repeaters, one frequency (part 2)original ↗
3 Aug 2012
QRP CW on the trail in the Wind River mountains of Wyomingoriginal ↗
23 Jul 2012
Solargraphs, or how to get a (sort of) color photo with black-and-white paperoriginal ↗
10 Jul 2012
Two repeaters, one frequency (part 1)original ↗
2 Jul 2012
Thoughts on the 2012 Field Dayoriginal ↗
27 Jun 2012
Field Day preparations continueoriginal ↗
20 Jun 2012
A suspiciously round sunspot...original ↗
6 Jun 2012
It's hiking season again!original ↗
4 Jun 2012
The "Cybernator"original ↗
30 May 2012
Stared at sun, had fun...original ↗
23 May 2012
Staring at the sun - for fun!original ↗
18 May 2012
Duck!original ↗
17 May 2012
Noise on NOAA imagesoriginal ↗
15 May 2012
A mechanically-powered capacitor flashlight?original ↗
13 May 2012
No Friendship Cruise this year...original ↗
11 May 2012
Getting the rigs ready for Field Dayoriginal ↗
11 May 2012
Intermittent GPS...original ↗
9 May 2012
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