PDA

View Full Version : Hobby Electronics

Pages : [1] 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
  1. YikeBike - The world's first super light electric folding bike.
  2. dgtec SD160DVR power supply question.
  3. Unboxing the Fake Intel Core i7-920
  4. trent guitar amps australian made
  5. Wanted: Pascom Redback PSTN Telecom DAA Hybrid IC's
  6. Sparkfun shippinjg charges
  7. Re: Schematic capture software preferences.
  8. Energizer USB Duo battery charger hides a Trojan
  9. Re: angelcare baby monitor sensor pad
  10. Popular Science magazine have made 137 years of back issues availablefor free on the net.
  11. The ant FM bug
  12. SC gps clock kit
  13. Re: angelcare baby monitor sensor pad
  14. Isolinear -Air dance?
  15. Death & Destruction of a Fluke Multimeter
  16. Innovators get Linux to boot in 1 second
  17. Re: phone line powered lighting
  18. Digikey, Fedex, & Customs
  19. Re: phone line powered lighting
  20. Re: Whiskers
  21. Type of wire used for automotive HID lighting?
  22. Re: Red LED lights healing properties....
  23. HDTV - experince (tip) - Melbourne Metro
  24. Re: Red LED lights healing properties....
  25. Re: Is my IP camera working?
  26. Re: Red LED lights healing properties....
  27. Re: Red LED lights healing properties....
  28. The main systeM
  29. Systems analysis? Space included/
  30. 2650mAh batteries.
  31. The electronics system overall
  32. New REC Scheme
  33. How hard is to build a processor?
  34. Re: Is my IP camera working?
  35. New SC Staffer
  36. Re: Is my IP camera working?
  37. Re: Is my IP camera working?
  38. Re: Is my IP camera working?
  39. Re: HTPC power supply for mobile home vs inverter
  40. Re: HTPC power supply for mobile home vs inverter
  41. Looking for IC
  42. OT answer to telemarketers.
  43. Re: Any experiences getting a Qld restricted elec license?
  44. Re: Best place to get hold of LEDS
  45. Re: Circuit for 12V lights to come on each evening.
  46. Circuit for 12V lights to come on each evening.
  47. Dishlex DX302 Service Manual?
  48. Re: Nifty stereo valve amplifier from Jaycar ?
  49. Google's Liquid Galaxy is. a wraparound view of 8 LCD screens
  50. Ideas of perfect
  51. Valentines Day, Say “I Love You” with an Arduino Project
  52. Canadian Olympic Torch Oops
  53. Another convincing argument not to use micksoft
  54. I.R. Headphones.
  55. Stanford's robotic Audi to brave Pikes Peak without a driver
  56. Re: Futurlec 'Express' shipping
  57. Re: Linear actuators
  58. Re: Linear actuators
  59. RS Coponents Australia
  60. Lab-Standard 49-Port USB Hub
  61. Re: IC - VGA to PAL
  62. Re: IC - VGA to PAL
  63. Re: IC - VGA to PAL
  64. Fast zener diode substitute
  65. Building a custom notch filter
  66. Re: IC - VGA to PAL
  67. OT: Copyright Infringement goes Back to The Future
  68. OT Skype phone number popup whinge
  69. Tap into 7 seg LCD driver...
  70. Re: Unusual battery use, or is it?
  71. Re: Unusual battery use, or is it?
  72. OT: It's WAR! EEVblog ripoff
  73. Home Labs
  74. Notebook power plug problem
  75. OT: Is this wrong and inappropriate?
  76. Re: charge a 12 vdc sla ftom cars 12 v system ?
  77. An 80 port USB Board
  78. OT: New course at U.Syd
  79. OT: Big Bang Theory
  80. Re: li-ion batteries
  81. OT:So many iPads to choose from ..
  82. Re: li-ion batteries
  83. PCB design software
  84. GUESS WHICH COUNTRY THIS IS...
  85. Google trikes to blaze 'street view' trail off road
  86. toshiba 37" lcd
  87. Re: "Happy" Invasion Day
  88. Re: decent SLA battery suppliers, Perth?
  89. Re: "Happy" Invasion Day
  90. Replacing a cordless handset.
  91. Re: "Happy" Invasion Day
  92. A Street View of Google Street View Vehicle in detail.
  93. Re: decent SLA battery suppliers, Perth?
  94. Light dimmer
  95. Test
  96. The Reverse Geocache Puzzle based on an Arduino microcontroller.
  97. Re: decent SLA battery suppliers, Perth?
  98. Re: decent SLA battery suppliers, Perth?
  99. Government offer of *feed-in tariff of 60 cents per kilowatt hour (kWh)*
  100. Wireless router antenna
  101. Video on Sparkfun Electronics giving away $100K in 1:45 hours.
  102. Re: ALDI UV Toothbrush sterilizer (Eprom Eraser).
  103. Luxeon, Cree, et al - LED questions
  104. Re: DAB sound quality
  105. Re: Free SCSI Drives, etc
  106. Re: Free SCSI Drives, etc
  107. Mast head amp interferes with Austar reception.
  108. Re: continuity tester ?
  109. Service?
  110. electronic circuits website
  111. Rigol DSO useful bandwidth ?
  112. Re: OT: Ozone layer.
  113. Re: ALDI UV Toothbrush sterilizer (Eprom Eraser).
  114. Re: OT: Ozone layer.
  115. EPROM eraser aka UV Toothbrush Sanitiser
  116. Re: Fraudulent AV cable on Ebay
  117. Re: Fraudulent AV cable on Ebay
  118. Re: Fraudulent AV cable on Ebay
  119. Re: Fraudulent AV cable on Ebay
  120. Re: Fraudulent AV cable on Ebay
  121. Stepping down voltage in lipo battery
  122. help need to design component
  123. Review!!!
  124. Re: Earth-4Energy Review!!!
  125. Re: Varispeed for small shaded pole motors
  126. magic box
  127. Re: Method of rectifying insufficient brightness from a CFL.
  128. Re: Method of rectifying insufficient brightness from a CFL.
  129. Audiophool product of the week
  130. Re: Samsung edge lit 46 " lcd TV
  131. Bloody digital!
  132. Re: Network question
  133. Rigol oscilloscope prices have sky-rocketed!
  134. Re: Atty Charles Novins Seeks Changes In Law to Protect Innocents From Internet Vandals
  135. Re: Atty Charles Novins Seeks Changes In Law to Protect Innocents FromInternet Vandals
  136. Re: Atty Charles Novins Seeks Changes In Law to Protect InnocentsFrom Internet Vandals
  137. making LEDs brighter
  138. cell phone/ mp3 /camera lanyards
  139. Panasonic Plasma fault
  140. Re: NiMH Battery Care.
  141. Merry Xmas to all on aus.electronics
  142. ZVOX Australia
  143. Re: wireless TV repeater
  144. Re: Protecting horn switch contacts against arcing damage
  145. Re: Watt Hour Meters and a Street Light - anyone want them?
  146. Re: global warming and what you can do against it
  147. WTB: Paper Tape Reader
  148. “I’m sorry but we had to blow up your laptop. “
  149. Re: Protecting horn switch contacts against arcing damage
  150. Re: Protecting horn switch contacts against arcing damage
  151. Sending DVDs overseas
  152. Buying Blu ray Demo disks
  153. Re: Protecting horn switch contacts against arcing damage
  154. Re: Time.
  155. Re: Time.
  156. Does an USB stick gain weight when you put files on it?
  157. What's this kind of terminal called?
  158. Yep, they are going ahead with the filter!
  159. OT: Christmas Chinglish, for a laugh
  160. Re: Benq FP737S LCD monitor backlight - won't go off (longish).
  161. Re: NiMH Battery Care.
  162. OP , vents, not electric.
  163. At Stanford, nanotubes + ink + paper = instant battery
  164. Re: Earth-4Energy Review!!!
  165. Re: Sanyo semis in Australia
  166. Re: Sanyo semis in Australia
  167. And for some Mechanical binary addition
  168. ALDI Medion P86004 Webcam
  169. Re: megnetic fields around toroidal transformers
  170. Re: megnetic fields around toroidal transformers
  171. Re: Name that socket (maybe pinout). 5-pin CCTV camera control
  172. Re: Acer AL2223W monitor repair
  173. Old EA / ET mags 70's - 80's FS
  174. ICs from Futurlec
  175. Re: circuit wanted for battery %charge monitor
  176. Re: Acer AL2223W monitor repair
  177. Acer 11.6" HD Netbook $349 Free Shipping
  178. How does crimping work?
  179. OT: NearMap
  180. Designer Duo Create Dress With 24,000 LEDs
  181. The world's oldest intact computer is turning 60 in Victoria.
  182. Mains LED Driver
  183. Turntable belt size, How to estimate
  184. Re: LG DVD/VCR MODEL --V782W
  185. Re: LG DVD/VCR MODEL --V782W
  186. Re: house wiring query
  187. "Free day" at Sparkfun
  188. Re: OT: house wiring query
  189. Two phases to house - loss of neutral
  190. Re: Call for Papers: IAENG International Conference on Electrical Engineering (ICEE 2010)
  191. Re: Question for those that would ban all guns...
  192. making up zener diodes
  193. Oregon Scientific Waterproof Action Cam,Tough, Durable, Shock Resistant,3M Waterproof
  194. re htc battery
  195. Re: UV EPROM Eraser
  196. Australia's fastest supercomputer unveiled in Canberra
  197. Re: To all our resident anti-gun posters
  198. Re: To all our resident anti-gun posters
  199. Re: To all our resident anti-gun posters
  200. phone batteries
  201. Farnell aquires Cadsoft (Eagle PCB)
  202. Asus 1000HG 3G Wireless Broadband Netbook $399
  203. Faulty Sony Trinitron 32" widescreen available in Sydney.
  204. Google releases new programing language.
  205. Some macro wallpapers of RAM circuitry that may interest
  206. Re: Rank Arena Widescreen CRT
  207. Dejavu Altronics
  208. Design of Electronic Vehicle Anti-theft Gadget
  209. Connect external switch to PC
  210. Windows 7 Newsgroups.
  211. Re: OT: Only in America
  212. Re: solar panel mounting from bunnings bits?
  213. Re: OT: Only in America
  214. RIGOL DS1052E 5.6" TFT LCD 50MHz 2-Channel Digital Color Storage Oscilloscope
  215. Re: solar panel mounting from bunnings bits?
  216. Re: solar panel mounting from bunnings bits?
  217. Strong SRT5492 PVR
  218. Re: Thermal Fuse in Fan
  219. Re: solar panel mounting from bunnings bits?
  220. Official: AGW = Religion
  221. Google street view hitting OZ again this month
  222. Re: PCB design software ?
  223. square wave inverter and cfl buzz
  224. Re: PCB design software ?
  225. Re: PCB design software ?
  226. Re: PCB design software ?
  227. $399AUD Netbook sale on again
  228. My hat is off to Microchip and their CEO!
  229. Internet Speeds And Costs Around The World.
  230. Et tu - Trevor Wilson ??
  231. Worse RoHS Madness
  232. Re: Heres a gun enthusiast who may need a good lawyer
  233. RoHS gone MAD
  234. Chinglish
  235. Flooding Vodafone datacentre
  236. Compound USB device design
  237. Enclosure for computer (ATX) power supply
  238. Fuel pump problem.
  239. How to greatly extend Netbook battery time:
  240. $399 XP Asus 1000HE Netbook in oz.
  241. Re: 02 - FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT.. 2 days left ! AUSTRALIA HAS NO EARLY TSUNAMI WARNING SYSTEM !!!...just be ready to move to high ground & save you most precious valuable
  242. Practical transformer design
  243. Nokia's Netbook gamble
  244. Caution- On Topic: Anyone got any ideas for RFID for sports?
  245. Re: 02 - FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT.. 2 days left ! AUSTRALIA HAS NO EARLY TSUNAMI WARNING SYSTEM !!!...just be ready to move to high ground & save you most precious valuable
  246. mvh phase out?
  247. Re: Best place to get hold of LEDS
  248. Re: The Future Of Solar Power
  249. Hardware Puzzle Time
  250. Re: OT can anyone recommend a freight company
  251. Re: OT can anyone recommend a freight company
  252. Re: OT can anyone recommend a freight company
  253. The land of the free is at it again
  254. Re: 09. FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT.. 9 days left to go before the 2000 death toll & 1000s injuries & billionsin properties ' damages ! WAKE UP SHEEPLE
  255. Re: 09. FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT.. 9 days left to go before the 2000 death toll & 1000s injuries & billionsin properties ' damages ! WAKE UP SHEEPLE
  256. Re: FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT ... only 14 days to go now
  257. Re: Electricians mistake kills 2, injures 13.
  258. Plimer and Silicon Chip
  259. Re: Electricians mistake kills 2, injures 13.
  260. Re: Electricians mistake kills 2, injures 13.
  261. Late model surround sound receiver
  262. DSE
  263. Re: FABIAN BAY TSUNAMI WARNING FOR THE 14TH OF OCTOBER NEXT ... only14 days to go now
  264. Ian Plimer in this months SC.
  265. Re: What can I do to keep this board from warping?
  266. Audio - Eliminating earth loops
  267. OT:for those who hate iSnack2.0
  268. Re: Hello to all and help needed...
  269. Re: What can I do to keep this board from warping?
  270. Thermistor Question
  271. Re: last nights robotics show on abc tv
  272. Re: What can I do to keep this board from warping?
  273. Re: last nights robotics show on abc tv
  274. Re: last nights robotics show on abc tv
  275. Do all wireless modems need a sim?
  276. Re: In Europe: The great CFL rip-off.
  277. GPS Phone madness
  278. 555
  279. Re: Anyone for a cardboard PC?
  280. Re: Anyone for a cardboard PC?
  281. Re: Anyone for a cardboard PC?
  282. Re: Audio gain switching using relays
  283. Re: Audio gain switching using relays
  284. Media centre
  285. Biasing of LM3900 op amp
  286. Re: Trevor Wilson - Please read and give your view.....
  287. Re: Trevor Wilson - Please read and give your view.....
  288. APR is just another DAMN TROLL
  289. Looking for Legion brand power switch
  290. Re: Trevor Wilson - Please read and give your view.....
  291. Re: 60 inch plasma under 4 grand
  292. Fake Green Lamp ???
  293. Re: DC Rectifier
  294. Electronics qualifications in Australia
  295. Farnell delivery is now free
  296. RE: The great CFL rip-off
  297. Electus has lost the plot
  298. Re: DC Rectifier
  299. Re: DC Rectifier
  300. Re: DC Rectifier
  301. Re: DC Rectifier
  302. Re: DC Rectifier
  303. Jetstar unveils thin client, BYO laptop vision
  304. Re: BWD 540 CRO manual
  305. Re: BWD 540 CRO manual
  306. 1st world wasters demand WARs to secure energy, to keep on wasting and polluting the planet.
  307. Flickery monitors
  308. Conductive Urethane Black Foam, High Density, 1/4"x24"x36"
  309. Re: Please help me to produce a particular Lissajous pattern in Cathoderay Oscilloscope
  310. Re: In Europe: The great CFL rip-off.
  311. Re: IINCRIBLE & UNACCEPTABLE INTERFERENCE WITH MY POST TO MR PICKFORD
  312. Re: Wow- nothing else, just Wow!
  313. Re: Trevor Tosspot's Porky List get yet another entry
  314. Re: Trevor Tosspot's Porky List get yet another entry
  315. Thermomix motor
  316. Re: HDMI switches
  317. LG Studioworks 995E fading to black
  318. Reed Relays
  319. Re: Mobile nos and telemarketers?
  320. Re: Outback Restaurants say NO to guns
  321. Re: Outback Restaurants say NO to guns
  322. Re: Relay/Contactor Power
  323. Most obnoxious USB hub ever
  324. Re: Outback Restaurants say NO to guns
  325. Nokia Booklet 3G brings all day mobility to the PC world
  326. Function Generator
  327. The first-ever video advertisement will be published in a traditionalpaper magazine in September.
  328. Electronics swap-fest gone mad...
  329. New Farnell Catalog
  330. Rigol scope now under $500?
  331. Re: Intermittent problems with power fail routine
  332. Re: Intermittent problems with power fail routine
  333. info/specs on obscure TV/monitor
  334. Amusing failure in Omega analogue watch
  335. Futurlec + IC's
  336. CMOS Cookbook +++
  337. Car Immobiliser Trouble
  338. Interference
  339. Re: using ac fuses in dc circuits
  340. RS Components vs. Farnell
  341. Bye Bye Radio Shack
  342. anyone build a simple amp for me?
  343. Re: IR detector behaviour query
  344. Re: TV remote button problem
  345. Re: TV remote button problem
  346. Audio-Sound Modules
  347. Schematic drawing software
  348. Digitech QC-1922 dual trace oscilloscope
  349. Re: TV fuse
  350. novice: op amp as voltage comparator
  351. Looking for STK043
  352. Re: TV fuse
  353. Re: recommend voltage doubler ic ?
  354. Re: recommend voltage doubler ic ?
  355. Re: TV fuse
  356. Re: TV fuse
  357. Re: TV fuse
  358. Zapps
  359. Information required
  360. re the great one
  361. Re:
  362. More on the Oscilloscope/Static pickup issue
  363. satellite dish
  364. Cutting nice holes in rack enclosures
  365. CMOS Digital IC's
  366. super sensitive microphone didn't work
  367. Specifications for automotive relays and switches?
  368. Digital to analogue converter
  369. Re: too many channels on ABC+SBS digitosis
  370. Why don't they mark SMD caps?
  371. Re: too many channels on ABC+SBS digitosis
  372. Farnell craziness?
  373. Re: BNC - now I've seen it all ...
  374. super sensitive microphone
  375. Rigol caught with their pants down! (DS1052E Oscilloscope)
  376. Re: BNC - now I've seen it all ...
  377. What is with DSE lately?
  378. UPS Fault
  379. Re: Where are ebooks?
  380. T.V. signal vanished for one channel only
  381. Need a new charger for AA NiMH batteries
  382. The Art of Failure
  383. Current/Voltage drop when LED blinks
  384. Can I buy a portable digital radio the size of a 'Walkman'?
  385. Re: wanted 12 vdc to 240 volt ac inverter schematic ( s ) 100 watt to 200 watt
  386. Re: OT:Bloat on Yahoo Mail on Firefox
  387. Re: wanted 12 vdc to 240 volt ac inverter schematic ( s ) 100 watt to 200 watt
  388. Re: wanted 12 vdc to 240 volt ac inverter schematic ( s ) 100 watt to 200 watt
  389. Letter of Apology to Charles Novins, Esq.
  390. Re: A message from "poor little fragile Johnny Baby"
  391. Re: OT: US military robots
  392. Re: AUK is as dead as colon Jake's brain..........since Bob "LionelLauer" Larter RAN-AWAY like Pinky Sue did !!
  393. What is this logo ??
  394. Apple iPhone info wanted
  395. fibreglass laminate board sources
  396. LCD monitors that accept RGBS at 15.75 Khz?
  397. diamond view monitor
  398. Re: Diode replacment
  399. Re: Diode replacment
  400. Re: How to drive MOSFETs fast
  401. can someone solder a Dick Smith kit for me?
  402. A/V sender
  403. Re: A message from "poor little fragile Johnny Baby"
  404. Media Players
  405. The chainsaw spoof!! Reaction?
  406. Re: A message from "poor little fragile Johnny Baby"
  407. Re: "sensible, common sense Usenet posting"..........sigh
  408. Re: "sensible, common sense Usenet posting"..........sigh
  409. Re: "sensible, commonsense gun laws"..........sigh
  410. Re: "sensible, common sense Usenet posting"..........sigh
  411. Re: "sensible, commonsense gun laws"..........sigh
  412. Re: "sensible, commonsense gun laws"..........sigh
  413. Re: "sensible, commonsense gun laws"..........sigh
  414. USB Chainsaw
  415. Same or not ???
  416. Thinking of buying a digital camera?
  417. Re: TV
  418. Re: TV
  419. Re: Hitachi MOSFET application note 1989
  420. Re: Hitachi MOSFET application note 1989
  421. Re: TV
  422. Re: Anti-gun lobby displaying it's ignorance again.
  423. Re: Hitachi MOSFET application note 1989
  424. Re: Anti-gun lobby displaying it's ignorance again.
  425. Re: TV
  426. Re: TV
  427. Re: TV
  428. Re: TV
  429. Re: Anti-gun lobby displaying it's ignorance again.
  430. Re: Hitachi MOSFET application note 1989
  431. Re: Hitachi MOSFET application note 1989
  432. Re: LCD tvs, flat screens, plasma, so confusing
  433. Re: diy high altitude balloon project in australia
  434. Re: diy high altitude balloon project in australia
  435. Re: diy high altitude balloon project in australia
  436. Re: diy high altitude balloon project in australia
  437. Re: diy high altitude balloon project in australia
  438. Intermittent open circuit in 3.5mm co-ax connectors
  439. Internet, now 20 years in Australia
  440. Recall on many new Laptops?
  441. Rigol DS 1052E CRO
  442. OT: OzLotto Randomness
  443. Microsoft are apparently considering flash drives as an officialinstall medium for Windows 7
  444. How to get 1.5Volts from a microphone.
  445. wtd: datasheet for sfc400 and sfc474
  446. Help
  447. Misbehaving door chime.
  448. Re: data sheet for TH2267
  449. OT Sad News
  450. An unusual Oscilloscope phenomenon
  451. Multicoloured PCBs
  452. Re: An addition to Trevor Tosspot's Porky List
  453. Re: I met an American today
  454. Re: I met an American today
  455. Foxtel IQ2
  456. Re: 12 vdc to 24 volt dc 150ma voltage doubler schematic needed.
  457. Wanted: Old Multimeters for... umm... some blogging fun
  458. Ten news adding up voltages
  459. Re: 12 vdc to 24 volt dc 150ma voltage doubler schematic needed.
  460. Re: Source for UF2007 ultrafast diode?
  461. Re: Source for UF2007 ultrafast diode?
  462. Re: Source for UF2007 ultrafast diode?
  463. Re: Source for UF2007 ultrafast diode?
  464. Looking for a TIP145 equivalent
  465. Re: A Quesion for Sylvia Else (stun guns)
  466. agency / ditribution wanted
  467. I need three 74132 ICs
  468. Re: Macron (HiPo) MPT-4012/5002 pooter PSU
  469. Transformer
  470. Wot, another search engine!
  471. Re: Where are ebooks?
  472. Re: Where are ebooks?
  473. Re: Where to get Flexible Flat Cable for scanner
  474. dual complementary transistors
  475. Re: Where are ebooks?
  476. Re: Where are ebooks?
  477. Re: Where are ebooks?
  478. Jaycars latest Multimeters
  479. Re: rf amp schematics 600 mw or less
  480. Solar rebate axed early
  481. Re: HDM I1.4
  482. Re: HDM I1.4
  483. Re: HDM I1.4
  484. Re: crackle from RHS speaker
  485. Surround sound from computer motherboard
  486. Re: HDM I1.4
  487. Re: RLET'S PRAY FOR THE 84 000 COMPLETELY RUINED INVESTORS OF TIMBERCORP& GREAT SOUTHERN MIS HANGING THEMSELVES IN DROVES OUT OF DESPAIR ...Consequence indeed of the Mining & Political Criminals Collective Crimes& demanded Collective C
  488. Yet another search engine, however this time it is Microsoft's Bing.
  489. Re: Driving a beanpole OP stage with squarewaves
  490. Re: Driving a beanpole OP stage with squarewaves
  491. Dick Smith is no more
  492. Re: crackle from RHS speaker
  493. Dumb question time: PCB vias
  494. Rechargeable cordless drill battery showing incorrect full chargewhen sitting in charger
  495. OT: Melb - Inkjet printing on plastic
  496. Europeans drop watt in favour of lumen
  497. Re: KOREAN UNDERGROUND NUKE SETTING THE STAGE FOR MAJOR DEVASTATINGQUAKES ALONG LATITUDE OR LONGITUDE LINES ... 9.2 Great Sydney Quake couldthen be anticipated with 2 millions toll on Friday MAY 29, 2009 2 amlocal time !
  498. Re: COST OF WATER TO RISE 100% BUT THE COST OF CANCER & RELATED TOSUB STANDARD AUSTRALIAN TAP WATER DISEASES TO RISE 10 000 %
  499. Leo's latest missive - Silicon Chip editorial
  500. Wireless mobile phone as a computer speaker and microphone