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Another implementation of the classic two transistor Joule Thief circuit, made entirely with surface mount components.
I have glued the board on to the battery holder just to neaten and finish the project.
Eagle source files and printable etch-resist mask available on request.
Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
via Tumblr bit.ly/19vaPgW Electronics from Amazon:
Samsung EX2F Camera Review,
Samsung UN46F8000 LED HDTV Review,
Samsung UN55F8000 LED HDTV Review,
Samsung HW-F750 Wireless Sound Bar Review,
Samsung BD-F7500 3D Blu-ray Player Review,
Kenwood Excelon DNN990HD – WIFI-EMBEDDED IN-DASH Receiver Review,
Samsung Series 7 Chronos (770Z5E) Laptop Review,
Samsung CLP-365W Color Laser Printer Review,
Samsung DA-F60 Wireless Speakers,
Samsung DV150F Camera Review,
Samsung PN51F8500 PLASMA TV Review,
Samsung KNF559500 LED HDTV Review,
Samsung PN64F8500 3D Plasma TV Review,
Samsung UN75F8000 LED HDTV Review,
Samsung ST150F Camera,
Samsung UN55F7000 LED HDTV Review,
Samsung UN46F7500 LED-LCD Review,
Samsung UN60F7000 LED HDTV Review,
Samsung ST72 Camera Review,
Samsung VG-STC3000 TV Camera Review,
DDR3 64GB LRDIMM Review,
Toshiba 23L2300U 23” LED TV Review,
Toshiba 84L9300U 84” Ultra HD 4K LED TV Review,
Toshiba 65L9300U 65” Ultra HD 4K LED TV Review,
Toshiba 58L9300U 58” Ultra HD 4K LED TV Review,
Toshiba 50L4300U 50” LED
Photos from an article about some different identifying marks on chips. You can read that article here.
Digital storage adapt0r. This Thurlby DSA524 will turn my 1970s Hewlett-Packard oscilloscope into a 1980s digital storage oscilloscope.
The bandwidth is 5MHz, which will allow me to see the rise and fall of waveforms produced by 1970s digital electronics fairly clearly.
It also has tons of buttons and red LEDs and beeps when you switch it on.
Oh and an interface port that allows you to connect it to a BBC Master Microcomputer.
[edit]
See also: github.com/gordonjcp/dsa524
Question: What the heck is PONG supposed to be?
When you're playing it, it feels like the video game representation of some real-life sport. You're bouncing a ball back and forth with another player, which at first glance sounds a lot like like table tennis, AKA ping pong-- and that would seem to explain the name. And yet, PONG is two-dimensional and free of gravity. The ball goes in a straight line, at a fairly constant rate of travel. And you don't play ping pong by rotating a wheel. Come to think of it, it's not a darned thing like ping pong. So what the heck is it?
To answer this, we built this real-life Tabletop Pong game. You can read more about this project here.
Now that I have the satellite internet working, our electronics configuration can be finalized. From top to bottom in the rolltop cabinet, there are two slots for the laptops (which land on the bed if they fall out, thank goodness). Below that is a tall shelf with (left to right) battery charger, XM radio dock for when it's not in the front, the tall blue Hughesnet modem (satellite internet) with the wireless router behind it, and the white cardboard box which contains all the datacard chargers, wires, etc. On the back wall are switched surge protectors so either the TV or the internet stuff can be turned off en masse when not in use, eliminating parasitic drains. Next below that with the blue circle on it is the DirecTV tuner, and on the bottom shelf is the HDMI A-B switch to select input for the TV (Blu-ray player or DirecTV tuner). Lastly, the Blu-ray/DVD/CD/mp3 player is on the bottom underneath the A-B switch. The TV is a 720p Samsung 19 inch model, world's smallest high definition television and only 40 watts, on a swivel mount that allows us to watch in bed or from the seats up front. Black wire hanging down from the TV is for the earphones - comes in handy due to our staggered sleep schedules.
With all those blinking blue indicator lights, at night it looks like the aliens have landed. We have to shut the cover to get any sleep.
N8VEM ribbon cable. From left to right, the ribbon cable lines are connected to pins 1 (black), 2 (white), 3 (gray), 4 (purple), 5 (blue), 6 (green), 7 (yellow), 8 (orange), 9 (red), 10 (brown).
Pin 1 on the header is marked by a triangle on the solder mask silk screen, and the pins are numbered 1, 3, 5, 7, 9 on the bottom row (toward the components), and 2, 4, 6, 8, 10 on the top row (away from the components)
Also in production is the inflatable balloon catheter, which is inserted in a vein in the leg and travels to the interior of the heart, so to avoid open heart surgery.
Electronics factory workers, Cikarang, Indonesia © ILO/Asrian Mirza
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US.
It's a "Larson Scanner" based on the Evil Mad Scientist kit of the same name. Details at my blog:
baldwisdom.com/desperate-halloween-project-the-cylon-pump...
Made possible by a pretty good selection of parts now on hand (I had to buy the big LED's) and my Adafruit USBTiny ISP
One word of advice: Buy the kit. I thought of doing this too late, but wish I had. The kit would have taken me 15 minutes, this ended up taking hours.)
“아이스크림폰이 스마트를 입고 돌아왔다”
■ ‘와인스마트’에 이은 새로운 스마트 폴더폰, 이번 주 LG유플러스 통해 출시
■ 가로, 세로 3줄씩 보이는 시원한 화면 인터페이스, 간편설정 등 직관적인 UX 적용
■ MC사업본부장 조준호 사장 “와인 스마트, 아카 등과 함께 고객들에게 차별화된 스마트 경험을 제공하는 제품이 될 것”
※ Social LG전자 (social.lge.co.kr/newsroom) 에서 관련 보도자료를 확인하실 수 있습니다.
Back to Electronics !
I do not have macro lens, but tried to capture this using the stadard lens.
Post processing done with Picasa software. :)
Aperture : f/5.6 (I know its not good for macro!)
Shutter Speed : 1/30 sec.
ISO 280
■ ‘LG 워치 어베인 LTE’로 ‘아우디’ 자동차 제어하는 기술 시연
□ 스마트워치에 내장된 NFC로 아우디 자동차 시동 온·오프
□ 운전석 도어 손잡이 근처에 대기만 해도 도어 개폐
■ 진일보할 미래의 스마트워치와 자동차 간 연동 시나리오도 공개
□ 좌석 히터 예열, 주차 위치 알림, 운전자 심박수 체크 기능 등
※ Social LG전자 (social.lge.co.kr/newsroom) 에서 관련 보도자료를 확인하실 수 있습니다.
Hi-Tech Electronics. New York City. July 6, 2017. © Copyright 2017 G Dan Mitchell - all rights reserved.
Man crosses street in front of Hi-Tech Electronics store, Manhattan
I made this photograph on a quick walk through a slightly seedy area of Manhattan, passing through on a hot afternoon as many people filled the streets. (It actually was crowded, despite the appearance in this photograph.) The area is one of somewhat run-down businesses in one of those pockets where there are not so many tall buildings.
I see many things when doing street photography. Some of them are static enough that I can take some time to make the photograph, but others happen instantaneously and are gone in an instant — they require a "shoot without thinking" kind of response — and that was the case with this one. Obviously, the man walking toward me was only there for a moment, but even better was the brief conjunction of red things in the frame. A close look may reveal even more of them that you notice at first.
G Dan Mitchell is a California photographer and visual opportunist. His book, "California's Fall Color: A Photographer's Guide to Autumn in the Sierra" is available from Heyday Books and Amazon.
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All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.
Biggest Electronics store in the World Yodobashi-Akiba Tokyo, Japan
Exposure: 1/500 sec at f/4 ISO 1250 lens: EF17-40mm f/4L USM at 25mm