User contributions
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- 13:09, 30 December 2008 (diff | hist) . . (+1,244) . . User talk:Wad (→Dissasembly of keyboard: safety first. who cares about frequency response if you've fried your laptop or yourself?)
- 19:54, 15 September 2008 (diff | hist) . . (+625) . . Talk:XO-2 (→USB: if you leave this out of the design you've killed it)
- 14:43, 9 July 2008 (diff | hist) . . (+450) . . Talk:Measure (→line voltage: good information, the cautions about damage from even a 1.5 volt battery still remain)
- 20:13, 2 July 2008 (diff | hist) . . (+459) . . User talk:Arjs (→Turtle Art with Sensors: wvbailey's back from Wyoming)
- 11:34, 31 May 2008 (diff | hist) . . (+1,362) . . Measure (→Projects and Activities Index: add frequency counter, port expander to supply +5 volts to all these gizmos)
- 11:06, 31 May 2008 (diff | hist) . . (+652) . . Measure (→Learning Activities: small edits, add an intro to the "index" about "transducers")
- 23:14, 30 May 2008 (diff | hist) . . (+3,243) . . Measure (→Projects and Activities Index: more activities around electromagnetism)
- 10:51, 24 May 2008 (diff | hist) . . (+134) . . Measure/Projects/Signal-Generator (→Detailed circuit description: attempt to improve image resolution) (current)
- 10:41, 24 May 2008 (diff | hist) . . (+37) . . N File:OLPC oscillator 0.png (2nd download attempt to improve image)
- 22:44, 23 May 2008 (diff | hist) . . (+417) . . Measure/Projects/Signal-Generator (→Detailed circuit description)
- 22:31, 23 May 2008 (diff | hist) . . (+253) . . Measure/Projects/Signal-Generator (→Detailed circuit description: tradeoffs)
- 22:26, 23 May 2008 (diff | hist) . . (+1,233) . . Measure/Projects/Signal-Generator (→Detailed circuit description: a followup)
- 21:40, 23 May 2008 (diff | hist) . . (+316) . . Measure/Projects/Signal-Generator (→Detailed circuit description: add circuit drawing)
- 21:36, 23 May 2008 (diff | hist) . . (+43) . . N File:OLPC oscillator 0.PNG (Original drawing by wvbailey in Autosketch.)
- 21:31, 23 May 2008 (diff | hist) . . (+7) . . m Measure (→Projects and Activities Index: correct typos in the update)
- 21:29, 23 May 2008 (diff | hist) . . (+131) . . Measure (→Projects and Activities Index: update)
- 21:25, 23 May 2008 (diff | hist) . . (-13) . . Measure (→Projects and Activities Index: update)
- 21:21, 23 May 2008 (diff | hist) . . (+771) . . Measure/Projects/Lighted Graticule (→Introduction -- Graticule working with 50:1 probe for a calibrated display) (current)
- 21:10, 23 May 2008 (diff | hist) . . (+94) . . N File:Oscilloscope circuit 5 1.PNG (Original drawing by wvbailey in Autosketch, saved as png, trimmed in Acrobat and saved as png.)
- 21:04, 23 May 2008 (diff | hist) . . (+2,291) . . Measure/Projects/Lighted Graticule (→Introduction -- Graticule working with 50:1 probe for a calibrated display: revise a bit -- a spec is developing...)
- 20:22, 23 May 2008 (diff | hist) . . (+388) . . Measure/Projects/Lighted Graticule (→Lighted Graticule: am making progress: redefine the general intent)
- 13:23, 22 May 2008 (diff | hist) . . (+1) . . m Measure/Projects/Signal-Generator (→= Input Vin truly floating, thus ''not'' referenced to circuit common ("ground"):)
- 13:22, 22 May 2008 (diff | hist) . . (+1,354) . . Measure/Projects/Signal-Generator (→Operational amplifier and level-shifter: add a second form of the differential amplifer when Vin truly floats)
- 19:08, 20 May 2008 (diff | hist) . . (+1,924) . . Measure/Projects/Signal-Generator (→Detailed circuit analysis: flesh out some of the amplifier analysis)
- 18:39, 20 May 2008 (diff | hist) . . (-16) . . Measure/Activities/Magnets and Wire (→Build your own telephone: change bold-faced header to subsection) (current)
- 18:37, 20 May 2008 (diff | hist) . . (+1,365) . . Measure/Activities/Magnets and Wire (→Build your own microphone. Build your own speaker.: fix photo captions)
- 16:51, 20 May 2008 (diff | hist) . . (+816) . . Measure/Activities/Magnets and Wire (→Build your own telephone: add photos)
- 16:22, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC tuning fork oscillation on screen 1.png
- 16:17, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC vibrating tuning fork 1.png
- 15:55, 20 May 2008 (diff | hist) . . (+588) . . Measure/Activities/Magnets and Wire (→Build your own microphone. Build your own speaker.: twiddle with the intro)
- 12:48, 20 May 2008 (diff | hist) . . (+881) . . Measure/Activities/Magnets and Wire (→Magnets and Wire: add photos)
- 12:30, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC vise and coil 1.png
- 12:29, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC tuning forks 1.png
- 12:27, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC cup, magnet and coil 1.png
- 12:24, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC cup and magnet 1.png
- 11:41, 20 May 2008 (diff | hist) . . (+298) . . Measure/Activities/Magnets and Wire (→Build your own microphone. Build your own speaker.: add photo of coil)
- 11:12, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC guitar probe coil 3b.png
- 10:51, 20 May 2008 (diff | hist) . . (0) . . N File:OLPC stereo input jack.png
- 16:37, 17 May 2008 (diff | hist) . . (+5,698) . . Measure/Activities/Magnets and Wire (→Build your own microphone. Build your own speaker.)
- 13:37, 17 May 2008 (diff | hist) . . (+1,983) . . Measure/Projects/Lighted Graticule (photo with commentary)
- 13:02, 17 May 2008 (diff | hist) . . (+1,066) . . N Measure/Projects/Lighted Graticule (New page: = Lighted Graticule = == Introduction -- What is a graticule? == thumbnail|right| A '''graticule''' is a "scale on transparent material on the foca...)
- 12:40, 17 May 2008 (diff | hist) . . (+667) . . Measure (→Learning Activities: add a "lighted graticule" project)
- 12:25, 17 May 2008 (diff | hist) . . (+51) . . N File:OLPC lighted graticule 1.jpg (Original photo by wvbailey of graticule breadboard.)
- 18:11, 16 May 2008 (diff | hist) . . (+2,258) . . Measure/Blog (→Some of my ideas, thoughts, back-of-an-envelope sketches and musings regarding hardware interfaces to Measure:: thoughts)
- 17:02, 13 May 2008 (diff | hist) . . (+434) . . Measure/Projects/Signal-Generator (→Detailed circuit analysis: more)
- 16:44, 13 May 2008 (diff | hist) . . (+5,466) . . Measure/Projects/Signal-Generator (→Detailed circuit description)
- 13:49, 13 May 2008 (diff | hist) . . (+5,607) . . N Measure/Projects/Signal-Generator (begin to flesh this out)
- 12:16, 13 May 2008 (diff | hist) . . (+43) . . N File:OLPC oscillator 0.JPG (Original drawing by wvbailey in Autosketch.)
- 10:11, 12 May 2008 (diff | hist) . . (+204) . . Measure (→Activities Index: add a link to Measure/Projects/Measure Temperature)
- 10:01, 12 May 2008 (diff | hist) . . (0) . . m Talk:Measure (magnets from www.supermagnetman.net, not .com)
- 15:25, 11 May 2008 (diff | hist) . . (+853) . . Talk:Measure (→Measure page/project re-org idea: comment and some action)
- 15:09, 11 May 2008 (diff | hist) . . (-15,612) . . Talk:Measure (→Build your own microphone. Build your own speaker.: moved article)
- 15:02, 11 May 2008 (diff | hist) . . (+612) . . Measure (→Activities Index: flesh this out)
- 14:41, 11 May 2008 (diff | hist) . . (+60,094) . . N Measure/Projects/Oscilloscope probe (start new article)
- 14:39, 11 May 2008 (diff | hist) . . (+40) . . Measure (→Activities Index)
- 14:37, 11 May 2008 (diff | hist) . . (+16,057) . . N Measure/Activities/Magnets and Wire (Move content from Measure:Talk to new page)
- 14:34, 11 May 2008 (diff | hist) . . (+41) . . Measure (→Activities Index)
- 14:22, 11 May 2008 (diff | hist) . . (+502) . . Measure (→Learning Activities: start an index of activities with links)
- 14:11, 11 May 2008 (diff | hist) . . (+1,824) . . Talk:Measure (→Build your own telephone: some modifications based on experimental events)
- 16:52, 9 May 2008 (diff | hist) . . (+274) . . Talk:Measure (→Build your own microphone. Build your own speaker.: add tentative schematic of a 1000:1 amplifier)
- 16:44, 9 May 2008 (diff | hist) . . (+43) . . N File:OLPC vibrating-wire amp -- schematic 1.JPG (Original drawing by wvbailey in Autosketch.)
- 16:33, 9 May 2008 (diff | hist) . . (+76) . . Talk:Measure (→Build your own microphone. Build your own speaker.: I'll move this when we figure out the articles' structure & cataloging method)
- 16:31, 9 May 2008 (diff | hist) . . (+3,370) . . Talk:Measure (→Build your own telephone: vibrating guitar wires)
- 17:35, 8 May 2008 (diff | hist) . . (+160) . . Talk:Measure (→Build your own microphone. Build your own speaker.: add drawing of wire-vibration "detector")
- 17:27, 8 May 2008 (diff | hist) . . (+43) . . N File:OLPC wire-vibration detector -- cut-away 1.JPG (Original drawing in Autosketch by wvbailey.)
- 17:21, 8 May 2008 (diff | hist) . . (+1,933) . . Talk:Measure (→Build your own microphone. Build your own speaker.: Build your own telephone.)
- 10:36, 7 May 2008 (diff | hist) . . (+1) . . User:Wvbailey (current)
- 17:42, 6 May 2008 (diff | hist) . . (+557) . . Talk:Measure (→measure the gravitational constant: followup)
- 17:37, 6 May 2008 (diff | hist) . . (+7,958) . . Talk:Measure (→Build your own microphone. Build your own speaker.: some wordage, split drawings into two)
- 16:45, 6 May 2008 (diff | hist) . . (+43) . . N File:OLPC microphone, top-view -- assembly 1 .JPG (Original drawing by wvbailey in Autosketch.)
- 16:44, 6 May 2008 (diff | hist) . . (+43) . . N File:OLPC microphone, cut-away -- assembly 1 .JPG (Original drawing by wvbailey in Autosketch.)
- 16:29, 6 May 2008 (diff | hist) . . (+59) . . N File:OLPC microphone -- assembly 1.JPG (.jpg version of original drawing by wvbailey in Autosketch.)
- 16:27, 6 May 2008 (diff | hist) . . (+68) . . Talk:Measure (→Build your own microphone. Build your own speaker.: drawing resolution is poor, try a jpg)
- 16:23, 6 May 2008 (diff | hist) . . (+43) . . N File:OLPC microphone -- assembly 1.PNG (Original drawing by wvbailey in Autosketch.)
- 16:22, 6 May 2008 (diff | hist) . . (+374) . . Talk:Measure (→Commercially available sensor kits for the XO: Build your own microphone. Build your own speaker.)
- 16:56, 27 April 2008 (diff | hist) . . (+1,943) . . Talk:Measure (→Holding place: Information re the Measure/Temperature activity: a temp sensor much lower in cost than the LM35)
- 11:31, 16 April 2008 (diff | hist) . . (+2,894) . . Talk:Measure (→Holding place: Information re the Measure/Temperature activity: a response to the thermistor question)
- 19:22, 12 April 2008 (diff | hist) . . (+1,082) . . Talk:Measure (→Holding place: Information re the Measure/Temperature activity: a brief entry on how to make a water-proof probe)
- 18:54, 12 April 2008 (diff | hist) . . (+1,687) . . Talk:Measure (→Commercially available sensor kits for the XO: more pointed questions)
- 14:01, 2 April 2008 (diff | hist) . . (+625) . . Talk:Measure (→Commercially available sensor kits for the XO: a thought-question)
- 17:16, 11 March 2008 (diff | hist) . . (+805) . . User talk:Arjs (→Calls: I don't really believe the $2.00 is accurate --)
- 16:12, 5 March 2008 (diff | hist) . . (+66) . . Measure/Projects (→Revision History, simple differential amplifier: note updated B.O.M.)
- 16:10, 5 March 2008 (diff | hist) . . (+455) . . Measure/Projects (→Simple isolation and protection amplifier: design of v2 is done)
- 16:01, 5 March 2008 (diff | hist) . . (+1,246) . . Measure/Projects (→Bill of Materials (BOM): update)
- 11:02, 1 March 2008 (diff | hist) . . (+488) . . Measure/Projects (→Simple isolation and protection amplifier: Note a mistake in drawing (will fix later) + a discussion)
- 14:33, 28 February 2008 (diff | hist) . . (+131) . . Measure/Projects (→PC board manual-construction details: add locator drawing)
- 14:26, 28 February 2008 (diff | hist) . . (+95) . . N File:Oscilloscope circuit component locations 2k.JPG (Original drawing by wvbailey in Autosketch 9 saved as jpg. {{GPL}} (GNU General Public License))
- 12:50, 27 February 2008 (diff | hist) . . (+192) . . Measure/Projects (→PC board manual-construction details: add pcb dimensions drawing)
- 12:45, 27 February 2008 (diff | hist) . . (+145) . . N File:Oscilloscope circuit dimensions 2k .JPG (Original drawing by wvbailey in Autosketch 9, exported as jpg, trimmed in Adobe Acrobat and exported as jpg. {{GPL}} (GNU General Public License))
- 11:30, 27 February 2008 (diff | hist) . . (+132) . . Measure/Projects (→Revision History, simple differential amplifier: REV 6)
- 11:27, 27 February 2008 (diff | hist) . . (+1,474) . . Measure/Projects (→PC board manual-construction details: add two images)
- 10:41, 27 February 2008 (diff | hist) . . (+64) . . N File:OLPC oscilloscope probe front 2k .jpg (Original photo by wvbailey. {{GPL}} (GNU General Public License))
- 10:38, 27 February 2008 (diff | hist) . . (+64) . . N File:OLPC oscilloscope probe back 2k .jpg (Original photo by wvbailey. {{GPL}} (GNU General Public License))
- 18:29, 26 February 2008 (diff | hist) . . (+1,427) . . Measure/Projects (→PC board manual-construction details: revised with new drawings and text)
- 17:48, 26 February 2008 (diff | hist) . . (+153) . . N File:Oscilloscope circuit layout back 2k .JPG (Original drawing by wvbailey in Autosketch, saved as jpg then imported into Adobe Acrobat to trim and export as jpg. {{GPL}} (GNU General Public License))
- 17:25, 26 February 2008 (diff | hist) . . (+95) . . N File:Oscilloscope circuit layout front 2k .JPG (Original drawing by wvbailey in Autosketch 9 saved as jpg. {{GPL}} (GNU General Public License))
- 17:15, 26 February 2008 (diff | hist) . . (+99) . . N File:Oscilloscope circuit layout 2k.JPG (Original drawing by wvbailey in Autosketch 9 and saved as jpg. {{GPL}} (GNU General Public License))
- 22:27, 25 February 2008 (diff | hist) . . (+723) . . Talk:Measure (→Holding place: Information re the Measure/Temperature activity)
- 22:12, 25 February 2008 (diff | hist) . . (+64) . . N File:OLPC temp sensor with crimped leads 1.jpg (Original photo by wvbailey. {{GPL}} (GNU General Public License))
- 21:45, 25 February 2008 (diff | hist) . . (+975) . . Talk:Measure (→Holding place: Information re the Measure/Temperature activity)
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