User contributions
- 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)
- 21:35, 25 February 2008 (diff | hist) . . (+265) . . Talk:Measure (→Basic metafor - Oscilloscope for beginners: where the microphone input is located)
- 19:03, 24 February 2008 (diff | hist) . . (+159) . . Measure/Projects (→Specifications: emend the emendments)
- 18:55, 24 February 2008 (diff | hist) . . (+108) . . Measure/Projects (→Specifications: emend)
- 18:36, 24 February 2008 (diff | hist) . . (+45) . . Measure/Projects (→Revision History, simple differential amplifier: Rev 5)
- 16:16, 24 February 2008 (diff | hist) . . (+163) . . N File:Oscilloscope cabling 1.PNG (Original drawing by wvbailey in Autosketch 9.0 saved as png, then imported into Adobe Acrobat and trimmed and exported as png. {{GPL}} (GNU General Public License))
- 16:04, 24 February 2008 (diff | hist) . . (+29) . . Measure/Projects (→PC board manual-construction details: add drawings)
- 12:50, 24 February 2008 (diff | hist) . . (+98) . . N File:Oscilloscope enclosure left and right 1.JPG (Original drawing by wvbailey in Autosketch 9.0, saved as jpg. {{GPL}} (GNU General Public License))
- 12:36, 24 February 2008 (diff | hist) . . (+101) . . N File:Oscilloscope enclosure top 1.JPG (Original drawing by wvbailey in Autosketch 9.0, exported as jpg. {{GPL}} (GNU General Public License))
- 12:34, 24 February 2008 (diff | hist) . . (+101) . . N File:Oscilloscope enclosure cover 1.JPG (Original drawing by wvbailey in Autosketch 9.0, exported as jpg. {{GPL}} (GNU General Public License))
- 12:27, 24 February 2008 (diff | hist) . . (+152) . . N File:Oscilloscope enclosure right 1.PNG (Original drawing by wvbailey in Autosketch 9.0, exported as png then trimmed in Adobe Acrobat and exported as png. {{GPL}} (GNU General Public License))
- 12:25, 24 February 2008 (diff | hist) . . (+152) . . N File:Oscilloscope enclosure left 1.PNG (Original drawing by wvbailey in Autosketch 9.0, exported as png then trimmed in Adobe Acrobat and exported as png. {{GPL}} (GNU General Public License))
- 12:21, 24 February 2008 (diff | hist) . . (+152) . . N File:Oscilloscope enclosure cover 1.PNG (Original drawing by wvbailey in Autosketch 9.0, exported as png then trimmed in Adobe Acrobat and exported as png. {{GPL}} (GNU General Public License))
- 12:16, 20 February 2008 (diff | hist) . . (+303) . . Measure/Projects (→Cable: For +5 volt power from laptop and audio-plug input to laptop: revise)
- 11:29, 20 February 2008 (diff | hist) . . (+425) . . Measure/Projects (→Simple isolation and protection amplifier: add photo)
- 11:11, 20 February 2008 (diff | hist) . . (+17) . . N File:Oscilloscope probe photo 1.jpg (Photo by wvbailey)
- 10:55, 20 February 2008 (diff | hist) . . (+343) . . m Measure/Projects (→Construction Details: add holding place for "mechanical details" section plus)
- 23:27, 19 February 2008 (diff | hist) . . (+93) . . Measure/Projects (→Revision History, simple differential amplifier: updates REV 4)
- 23:17, 19 February 2008 (diff | hist) . . (+345) . . Measure/Projects (→USB 2.0 Connection for +5 volt power: add preliminary assembly drawings)
- 23:02, 19 February 2008 (diff | hist) . . (+147) . . N File:Oscilloscope cabling 5.PNG (Original drawing by wvbailey in Autosketch 9, imported into Adobe Acrobat to trim, then exported as .png. Template:GPL (GNU General Public License))
- 19:54, 19 February 2008 (diff | hist) . . (+147) . . N File:Oscilloscope cabling 6.PNG (Original drawing by wvbailey in Autosketch 9, imported into Adobe Acrobat to trim, then exported as .png. Template:GPL (GNU General Public License))
- 19:09, 19 February 2008 (diff | hist) . . (+142) . . N File:Oscilloscope cabling 2.PNG (Original drawing by wvbailey in Autosketch 9, imported into Adobe Acrobat to trim, then exported as .png. {{GPL}} (GNU General Public License))
- 18:51, 19 February 2008 (diff | hist) . . (+156) . . N File:Oscilloscope cabling 3.PNG (Original drawing by wvbailey in Autosketch 9, saved as .png, imported into Adobe Acrobat, trimmed and exported as .png. {{GPL}} (GNU General Public License))
- 18:30, 19 February 2008 (diff | hist) . . (+91) . . N File:Oscilloscope cabling 4.PNG (Drawn by wvbailey in Autosketch 9 and saved as a .png. {{GPL}} (GNU General Public License))
- 14:38, 19 February 2008 (diff | hist) . . (+141) . . N File:Oscilloscope cabling 2j.png (Original drawing by wvbailey in Autosketch, exported into Acrobat and then saved as .png. This is a trial to see if resolution is sufficient.)
- 14:32, 19 February 2008 (diff | hist) . . (+67) . . N File:Oscilloscope cabling 2j.JPG (Original drawing by wvbailey in Autosketch. Test to see resolution.)
- 14:26, 19 February 2008 (diff | hist) . . (+52) . . N File:Oscilloscope cabling 2j.pdf (Original drawing by wvbailey. Test export as a .pdf.)
- 23:47, 12 February 2008 (diff | hist) . . (+102) . . Measure/Projects (→Circuit description: update)
- 23:26, 12 February 2008 (diff | hist) . . (+307) . . Measure/Projects (→Revision History, simple differential amplifier: update)
- 23:20, 12 February 2008 (diff | hist) . . (+4,633) . . Measure/Projects (→Construction Details: update)
- 17:12, 12 February 2008 (diff | hist) . . (+100) . . N File:Oscilloscope circuit layout 2j.png (Drawn by wvbailey in Autosketch and saved as .jpg. Imported into Adobe Acrobat and exported as .png.)
- 16:02, 12 February 2008 (diff | hist) . . (+9,363) . . Measure/Projects (→Bill of Materials (BOM): update BOM)
- 13:55, 26 January 2008 (diff | hist) . . (+4,652) . . User talk:Arjs (→Temperature measurements: a comment on assembling the temp probe and on the)
- 22:05, 22 January 2008 (diff | hist) . . (+2,712) . . Talk:Measure (→line voltage: a longish answer)
- 01:01, 15 January 2008 (diff | hist) . . (+1,138) . . User talk:Arjs (→Temperature measurements: a few more thoughts)
- 00:33, 15 January 2008 (diff | hist) . . (+580) . . Talk:Measure (→The speaker output as a source of square, triangle and sine waves but in the Measure activity)
- 19:57, 14 January 2008 (diff | hist) . . (+1,873) . . User talk:Arjs (→volunteers for your projects: yes, I will order the parts. Some concerns about tools needed...)
- 15:52, 14 January 2008 (diff | hist) . . (+448) . . Measure/Projects (→Construction Details: add board drawing that will fit inside a Hammond box)
- 15:44, 14 January 2008 (diff | hist) . . (+86) . . N File:Oscilloscope circuit dimensions 2g.png (Drawn by wvbailey in Autosketch then converted to .png through Adobe Acrobat. {{GFDL}})
- 12:17, 14 January 2008 (diff | hist) . . (+2,096) . . Measure/Projects (→Specifications: redo with more info)
- 19:31, 13 January 2008 (diff | hist) . . (+216) . . Measure/Projects (→Simple differential amplifier: change name to make clear what the purpose of this is, remove a drawing, etc)
- 19:23, 13 January 2008 (diff | hist) . . (+9,032) . . Measure/Projects (→Circuit description: add a lot more detail)
- 15:19, 9 January 2008 (diff | hist) . . (+417) . . Measure/Projects (→Construction Details: add the USB drawing and a header)
- 15:10, 9 January 2008 (diff | hist) . . (+884) . . Measure/Hardware (add USB drawing with an assembly print)
- 14:55, 9 January 2008 (diff | hist) . . (+117) . . N File:USB 2.0 plug.png (Original drawing by wvbailey in Autosketch, exported from Adobe Acrobat as png. Drawn from the USB 2.0 specification.)
- 14:44, 7 January 2008 (diff | hist) . . (+713) . . Talk:Measure (→measure the gravitational constant: where to buy magnets)
- 13:01, 6 January 2008 (diff | hist) . . (+278) . . OLPC:News (→Laptop News 2008-01-05: add wall street journal articles as well (1st one seems fully accessible, but the 2nd is restricted))
- 16:38, 5 January 2008 (diff | hist) . . (+1,846) . . Talk:Measure (→measure the gravitational constant: some thoughts, observations)
- 16:05, 5 January 2008 (diff | hist) . . (+6,351) . . Measure (→Simple differential amplifier: update schematics, drawings etc. schematic has an error -- two R9's. R9 in divider is actually R10. Will fix shortly.)
- 15:46, 5 January 2008 (diff | hist) . . (+92) . . N File:Oscilloscope circuit 2e.png (drawn by wvbailey, circuit with optional components, 1:20 gain, 1-turn trimmer potentiometer)
- 11:11, 3 January 2008 (diff | hist) . . (+337) . . Measure (→Construction Details: new section -- revision history)
- 11:05, 3 January 2008 (diff | hist) . . (-28) . . Measure (→Simple differential amplifier: move revision history to bottom)
- 12:29, 2 January 2008 (diff | hist) . . (+131) . . Measure (→Simple differential amplifier: add a "Revision" note)
- 11:54, 2 January 2008 (diff | hist) . . (+2,823) . . Measure (→Construction Details: clearer drawing, assembly tips)
- 10:46, 2 January 2008 (diff | hist) . . (+73) . . N File:Oscilloscope circuit 2d.png (Drawn by wvbailey in Autosketch and exported from Adobe Acrobat as a png.)
- 20:53, 1 January 2008 (diff | hist) . . (+123) . . Measure (→Construction Details: slight but important addition)
- 20:46, 1 January 2008 (diff | hist) . . (+2,253) . . Measure (→Construction Details: flesh out with the idea of casting/molding. this would need some detail work but is a really interesting way to make "blocks" that are quasi-hermetic)
- 19:58, 1 January 2008 (diff | hist) . . (+80) . . N File:Oscilloscope circuit 2c.JPG (Drawn in Autosketch and saved as a .jpg. The .png version has very poor quality.)
- 19:53, 1 January 2008 (diff | hist) . . (+80) . . N File:Oscilloscope circuit 2c.png (drawn by wvbailey in Autosketch, imported into Adobe Acrobat and saved as a png.)
- 15:24, 1 January 2008 (diff | hist) . . (+831) . . Measure (→Bill of Materials (BOM): revised BOM)
- 15:21, 1 January 2008 (diff | hist) . . (+1,840) . . Measure (→Bill of Materials (BOM): add a few "construction details" to get this going)
- 14:38, 1 January 2008 (diff | hist) . . (+630) . . Measure (→Specifications)
- 14:11, 1 January 2008 (diff | hist) . . (+496) . . Measure (→Specifications: add common-mode rejection spec)
- 13:57, 1 January 2008 (diff | hist) . . (+488) . . Measure (→Circuit description: tweaks)
- 13:24, 1 January 2008 (diff | hist) . . (+5,023) . . Measure (→Circuit description: add a bill of material with costs etc.)
- 14:48, 31 December 2007 (diff | hist) . . (+4,597) . . Measure (→Simple differential amplifier: flesh out the specs)
- 13:27, 31 December 2007 (diff | hist) . . (+7) . . Measure (→Simple differential amplifier)
- 13:27, 31 December 2007 (diff | hist) . . (+21) . . m Measure (→Simple differential amplifier)
- 13:26, 31 December 2007 (diff | hist) . . (+33) . . Measure (→Simple differential amplifier)
- 13:25, 31 December 2007 (diff | hist) . . (+87) . . Measure (→Hardware details: simple differential amplifer with 100K input impedance)
- 13:19, 31 December 2007 (diff | hist) . . (+95) . . N File:Oscilloscope circuit 2.png (Designed, tested and drawn by wvbailey in Autosketch and exported as a .png from Adobe Acrobat.)
- 13:18, 31 December 2007 (diff | hist) . . (+1,160) . . User talk:Ixo (Calculate activity...)
- 17:01, 30 December 2007 (diff | hist) . . (+295) . . Talk:Calculate (→gallery of Calculate examples: examples very helpful, also a syntax and list of functions/instructions/commands would be helpful)
- 18:10, 29 December 2007 (diff | hist) . . (+274) . . Measure (→Input specifications: change specs based on successful circuit and measurements)
- 13:57, 29 December 2007 (diff | hist) . . (+162) . . Measure (→'''SAFETY FIRST!''')
- 13:52, 29 December 2007 (diff | hist) . . (+354) . . Measure (→SAFETY FIRST!: verbage tweak)
- 13:41, 29 December 2007 (diff | hist) . . (+19) . . Measure (→SAFETY FIRST!: tweak)
- 13:37, 29 December 2007 (diff | hist) . . (+69) . . Measure (→SAFETY FIRST!: last of the warnings)
- 13:32, 29 December 2007 (diff | hist) . . (+79) . . N File:Cautionary warning -- Explosion and Fire.png (Drawn by wvbailey in Autosketch, imported into Adobe Acrobat and saved as .png.)
- 23:13, 28 December 2007 (diff | hist) . . (0) . . Measure (→SAFETY FIRST!: Boldface major warning)
- 23:12, 28 December 2007 (diff | hist) . . (-14) . . Measure (→SAFETY FIRST!: The ultimate red warning banner)
- 23:09, 28 December 2007 (diff | hist) . . (+82) . . N File:Warning -- Read and Understand these Warnings and Cautions.png (Drawn by wvbailey in Autosketch and imported into Adobe Acrobat and saved as .png.)
- 22:52, 28 December 2007 (diff | hist) . . (+361) . . Measure (→SAFETY FIRST!: more safety symbols)
- 22:43, 28 December 2007 (diff | hist) . . (+71) . . N File:Caution -- Read and Understand These Instructions.png (drawn by wvbailey in Autosketch and exported from Adobe Acrobat as .png)
- 22:40, 28 December 2007 (diff | hist) . . (+431) . . Measure (→Input specifications: tweaks of warning labels)
- 22:29, 28 December 2007 (diff | hist) . . (-2) . . m Measure (→Input specifications: amplified image more in scale)
- 22:28, 28 December 2007 (diff | hist) . . (-2) . . m Measure (→Output and related ideas: amplified image)
- 15:30, 28 December 2007 (diff | hist) . . (-2) . . m Measure (→SAFETY FIRST!: change image to more pronounced version)
- 15:17, 28 December 2007 (diff | hist) . . (+685) . . Measure (→Introduction: apply warning at the outset. This needs a red warning and will do soon, plus a symbol for "read the instructions")
- 15:13, 28 December 2007 (diff | hist) . . (+336) . . Measure (→Output and related ideas: add glaring safety warning to lower warning as well)
- 15:11, 28 December 2007 (diff | hist) . . (+666) . . Measure (→Input specifications: more info about plugs etc)
- 14:55, 28 December 2007 (diff | hist) . . (+26) . . Measure (→Input specifications: drawing showing design of a phono jack with)
- 14:50, 28 December 2007 (diff | hist) . . (+77) . . N File:OLPC input jack.png (drawn by wvbailey in Autosketch, imported to Adobe Acrobat and saved as .png.)
- 12:35, 28 December 2007 (diff | hist) . . (+161) . . Measure (→Input specifications: add a bit more to warning)
- 12:23, 28 December 2007 (diff | hist) . . (+1,861) . . Ask OLPC a Question about Hardware (→Connecting to Apple Wireless: safety issues and equipment-destruction issues re the Measure activity)
- 12:02, 28 December 2007 (diff | hist) . . (+358) . . Ask OLPC a Question about Hardware (→opening the laptop: how do I opening the laptop, bottom keyboard half)
- 19:00, 26 December 2007 (diff | hist) . . (+315) . . Measure (→Input specifications: a more graphically explict image of what happens when you mess around with AC line voltages)
- 18:52, 26 December 2007 (diff | hist) . . (+147) . . N File:Cautionary warning -- Electrocution 2.png (redraw as more graphic version of Image: Cautionary_warning_--_Electrocution.png by wvbailey in Autosketch and converted to .png with Adobe Acrobat)
- 18:12, 26 December 2007 (diff | hist) . . (+182) . . Measure (→Input specifications: 2nd cautionary warning)
- 18:06, 26 December 2007 (diff | hist) . . (+72) . . N File:Cautionary warning -- Caution.png (drawn by wvbailey in Autosketch and converted to .png with Adobe Acrobat)
- 17:47, 26 December 2007 (diff | hist) . . (+243) . . Measure (→Input specifications: add cautionary label (lightning bolt) and wording. Exclamation mark to come.)
- 17:37, 26 December 2007 (diff | hist) . . (+70) . . N File:Cautionary warning -- Electrocution.png (drawn by wvbailey in Autosketch and converted to .png by Adobe Acrobat)
- 17:09, 26 December 2007 (diff | hist) . . (+832) . . Measure (→Input specifications: Cautionary warning, add a minus-voltage specification and details about mono connectors)
- 15:14, 26 December 2007 (diff | hist) . . (-1) . . Measure (→Hardware details: fix the header. flesh out the specs derived from terminal measurements. If someone can get me a schematic I can do a better job.)
- 15:13, 26 December 2007 (diff | hist) . . (+2,107) . . Measure (→Hardware details: flesh out specs derived from terminal measurements. If someone can get me a schematic I could do a better job.)
- 14:13, 26 December 2007 (diff | hist) . . (+248) . . Ask OLPC a Question/New (The posts "Applications hanging" and "Connecting to internet" sound similar)
- 11:07, 25 December 2007 (diff | hist) . . (+714) . . User talk:Holt (→welcome: jumpy scratchpad test volunteer)
- 10:58, 25 December 2007 (diff | hist) . . (+139) . . Ask OLPC a Question about Software (→Irritating window-frame: makes bottom and top scroll-bars hard to use, etc: RE home button and/or a task bar visible in all activities, also found Keyboard Shortcuts)
- 10:50, 25 December 2007 (diff | hist) . . (+886) . . Ask OLPC a Question about Software (→Irritating window-frame: makes bottom and top scroll-bars hard to use, etc: RE home buttons and task-bars present in every application, Is there a "catalog" of shortcut keystrokes?)
- 18:20, 24 December 2007 (diff | hist) . . (+223) . . Measure (→Hardware details: add some specs with place holders)
- 17:57, 24 December 2007 (diff | hist) . . (+3) . . Talk:Measure (→measure the gravitational constant: fix bullet-point symbols on expanded entry)
- 17:56, 24 December 2007 (diff | hist) . . (+1,310) . . Talk:Measure (→measure the gravitational constant: expand entry with some actual experiments)
- 17:03, 24 December 2007 (diff | hist) . . (+1,276) . . Ask OLPC a Question about Software (→Irritating window-frame: makes bottom and top scroll-bars hard to use, etc: expand the post slightly)
- 12:45, 24 December 2007 (diff | hist) . . (+1,138) . . Ask OLPC a Question about Software (→Irritating window-shrinkage: makes bottom and top scroll-bars hard to use, etc)
- 13:31, 23 December 2007 (diff | hist) . . (+617) . . Talk:Calculate (→Boolean operations: request NOT: add references to the Python site re definition of boolean operators as if-then-else operations)
- 12:05, 23 December 2007 (diff | hist) . . (+1,079) . . Ask OLPC a Question/New (→applications hanging: what I did to get mine to link to my WEP Verizon wireless)
- 19:26, 22 December 2007 (diff | hist) . . (+1,995) . . Talk:Measure (a proposal to measure the gravitational constant)
- 18:57, 22 December 2007 (diff | hist) . . (+383) . . OLPC talk:News (jumpy scratchpad fix -- I hereby volunteer to test the fix. thanks)
- 16:01, 22 December 2007 (diff | hist) . . (+2,358) . . Talk:Calculate (→Boolean operations: request NOT: add a some more about a possible fix for the Boolean activity)
- 12:01, 22 December 2007 (diff | hist) . . (+467) . . Ask OLPC a Question about Software (→What worked and what doesn't out of the box. Some questions re software updates: I've given up on the ALPS capacitive touch-pad)
- 11:52, 22 December 2007 (diff | hist) . . (+917) . . Ask OLPC a Question about Software (→How does one get flash to autoload on websites?: Am finding the "shrinking window" a major source of irritation, it also makes difficult the use of the lower scroll bar when it appears)
- 11:28, 22 December 2007 (diff | hist) . . (+441) . . Talk:Calculate (→Boolean operations: request NOT: CMB's response from wikipedia re the issues)
- 18:21, 21 December 2007 (diff | hist) . . (+1,911) . . Talk:Calculate (→Feature Requests: thoughts about RPN, comments re my adventures with my G1G1, some more requests)
- 15:19, 21 December 2007 (diff | hist) . . (+1,478) . . Talk:Calculate (→Feature Requests: Add Boolean NOT, replace "stroke |" with V, what to do about entries such as 3 V 4 or 3 & 4?)
- 18:49, 20 December 2007 (diff | hist) . . (+87) . . Ask OLPC a Question about Software (→Software: blundered, didn't add subject: what worked and what didn't out of the box, questions re software updates, ALPS)
- 18:37, 20 December 2007 (diff | hist) . . (+993) . . Ask OLPC a Question about Software
- 18:22, 20 December 2007 (diff | hist) . . (+172) . . N User:Wvbailey (Intro)