User contributions

From Wikimedia Commons, the free media repository

Search for contributions

 Show contributions of new accounts only
 IP Address or username: Namespace: all (Gallery) Talk User User talk Commons Commons talk File File talk MediaWiki MediaWiki talk Template Template talk Help Help talk Category Category talk Creator Creator talk TimedText TimedText talk

Tag filter: 

From year (and earlier): From month (and earlier): all January February March April May June July August September October November December

(Latest | Earliest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

• 11:40, 29 June 2009 (hist | diff) N File:Diffraction on elliptic aperture with fft.png ‎ ({{Information |Description={{en|1={{Information |Description =The upper half of this image shows a diffraction pattern of He-Ne laser beam on an elliptic aperture about 3 m far. The lower half is a detail of its 2D Fourier transform calculated in GIMP. )
• 16:31, 2 June 2009 (hist | diff) File:Laser gaussian profile.svg ‎ (Categories have been checked)
• 20:32, 13 May 2009 (hist | diff) N File:ODIN Ti-Sapphire laser in operation.jpg ‎ ({{Information |Description={{en|1=View on the Coherent ODIN titan-sapphire ultrashort pulse amplifier in the Physical institute, CAS, Prague. The faintly visible green pump beam comes from left, supplied by Nd:YAG laser )
• 07:18, 21 April 2009 (hist | diff) File:Prague asterix laser system.jpeg ‎ (→Summary)
• 07:12, 21 April 2009 (hist | diff) N File:Prague asterix laser system-interaction chamber.jpeg ‎ ({{Information |Description={{en|1=Photograph of two interaction chambers of the Prague Asterix IV Laser System. The 1 kJ optical pulse is focused onto an area of less than 0,1 mm in diameter, creating hot dense plasma. High optical intensities need vacuu)
• 07:08, 21 April 2009 (hist | diff) m File:Prague asterix laser system-capacitor bank.jpeg ‎ (→Summary)
• 07:07, 21 April 2009 (hist | diff) N File:Prague asterix laser system-capacitor bank.jpeg ‎ ({{Information |Description={{en|1=Photograph of the Prague Asterix IV Laser System capacitor bank, driving the xenon flashlamps in the laser hall upstairs. On top, you can see triggered spark gaps (grey cylinders) used to switch the electric pulse.}} |Sou)
• 07:03, 21 April 2009 (hist | diff) N File:Prague asterix laser system.jpeg ‎ ({{Information |Description={{en|1=Photograph of the Prague Asterix IV Laser System. At left you can see the master oscillator (on optical table), followed by two pass preamplifier and four amplifying stages of iodine laser. The output pulse has a diameter)
• 13:18, 15 March 2009 (hist | diff) N File:Atmega8 fuses repair.svg ‎ ({{Information |Description={{en|1=A minimal interconnection of two ATMEGA8 MCUs for high-voltage parallel programming. Use it to repair fuses of blocked ATMEGA8, which can not be programmed using serial programming. }} |Source=Own work by uploader |Autho)
• 12:02, 15 March 2009 (hist | diff) File:Atmega8 pinout.svg ‎ (uploaded a new version of "File:Atmega8 pinout.svg": Corrected the AVCC and AREF pins.)
• 11:35, 15 March 2009 (hist | diff) N File:Atmega8 pinout.svg ‎ ({{Information |Description={{en|1=Pin names of the ATMEGA8 microcontroller. Drawn using information from the Atmel datasheet.}} |Source=Own work by uploader |Author=FDominec |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full)
• 14:33, 19 February 2009 (hist | diff) User:FDominec/Gallery ‎ (→Other) (top)
• 14:28, 19 February 2009 (hist | diff) N File:Vacuum symbols library.svg ‎ ({{Information |Description={{en|1=Several symbols of vacuum system components, including vacuum pumps, valves, gauges etc. The symbols probably are not standardized in the World. Please make sure that they are commonly used in your country's vacuum engine)
• 11:00, 19 February 2009 (hist | diff) User:FDominec/Gallery ‎ (→Electrical schematics)
• 11:00, 19 February 2009 (hist | diff) User:FDominec/Gallery ‎ (→Other)
• 10:59, 19 February 2009 (hist | diff) N File:Scanner lamp converter-DC12V-AC2kV.svg ‎ ({{Information |Description={{en|1=A simple circuit supplying the cold cathode lamp in the HP 3400C scanner. (The coil polarity matters, although not drawn.)}} |Source=Own work by uploader |Author=FDominec |Date= |Permission= |other_versi)
• 10:51, 19 February 2009 (hist | diff) N File:Drill inside.jpg ‎ ({{Information |Description={{en|1=A look inside a standard, thyristor regulated, 500 W drill. (CMI 500E)}} |Source=Own work by uploader |Author=FDominec |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> [[Category:Dril)
• 15:57, 25 January 2009 (hist | diff) N File:Atmega8 programmer box2.jpg ‎ ({{Information |Description={{en|1=Atmega8 microcontroller programming box.}} |Source=Own work by uploader |Author=FDominec |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> Category:Atmel Microcontrollers)
• 15:55, 25 January 2009 (hist | diff) N File:Atmega8 programmer box1.jpg ‎ ({{Information |Description={{en|1=Atmega8 microcontroller programming box.}} |Source=Own work by uploader |Author=FDominec |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> Category:Atmel Microcontrollers)
• 15:42, 25 January 2009 (hist | diff) File:Atmega8 lpt programmer.svg ‎ (→Summary)
• 15:41, 25 January 2009 (hist | diff) N File:Atmega8 lpt programmer.svg ‎ ({{Information |Description={{en|1=Minimal connection to upload the program from PC to the MCU Atmega8-16PU using the parallel port. The MCU is powered from some bit on LPT, which has logical 1 during the programming. This is acceptable regarding the very )
• 15:31, 25 January 2009 (hist | diff) User talk:FDominec ‎ (→use of image Electronic_component_germanium_diode.jpg for facebook quiz)
• 10:53, 25 April 2008 (hist | diff) File:MicroscopesOverview.jpg ‎
• 10:47, 25 April 2008 (hist | diff) User:FDominec/Gallery ‎ (→Other)
• 10:47, 25 April 2008 (hist | diff) File:SimpleSEMandTEM.jpg ‎ (→Licensing)
• 10:47, 25 April 2008 (hist | diff) N File:MicroscopesOverview.svg ‎ ({{Information |Description=Image illustrating the principle of various microscopes. |Source=self-made |Date=2008-04 |Author= FDominec |Permission= |other_versions=old png: SimpleSEMandTEM.jpg, maybe some other, too }} {{Inkscape}} [[Ca)
• 12:25, 4 April 2008 (hist | diff) Category:Created with electrical symbols library ‎ (+comment)
• 12:22, 4 April 2008 (hist | diff) m File:Common emitter amplifier.svg ‎ (own work)
• 12:22, 4 April 2008 (hist | diff) File:Filter bass mid treble.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:22, 4 April 2008 (hist | diff) File:Opamp notinverting.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:22, 4 April 2008 (hist | diff) File:Opamp inverting.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:22, 4 April 2008 (hist | diff) File:Simple transistor amplifier.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:22, 4 April 2008 (hist | diff) File:Oscillator hartley opamp.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Colpitt oscillator bjt.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) m File:Oscillator colpitt opamp.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Transistor as amplifier.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Transistor as switch.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Schmitt transistors.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Common collector amplifier.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Common base amplifier.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Common emitter amplifier.svg ‎ (+cat (ElCompLib), Public Domain)
• 12:21, 4 April 2008 (hist | diff) File:Sine sqare triangle generator values.svg ‎ (+cat (ElCompLib), Public Domain)
• 15:10, 31 March 2008 (hist | diff) m File:Ruby transmittance.svg ‎ (→Summary)
• 17:25, 23 March 2008 (hist | diff) File:Two-stage amplifier with opamp simple.svg ‎ (+ cat)
• 17:25, 23 March 2008 (hist | diff) m File:Two-stage amplifier with opamp.svg ‎ (+ cat)
• 15:16, 22 March 2008 (hist | diff) File:Two-stage amplifier with opamp.svg ‎ (→Summary)
• 15:16, 22 March 2008 (hist | diff) File:Two-stage amplifier with opamp simple.svg ‎ (== Summary == {{Information |Description=A simplificated version of a simple amplifier using an opamp as first A stage and Darlingtonian BJTs as second B stage. The negative feedback and clamping diodes ensure clean, linear output. |Source=self-made |Date)
• 14:16, 22 March 2008 (hist | diff) File:Two-stage amplifier with opamp.svg ‎ ({{Information |Description=A simple amplifier using an opamp as first A stage and Darlingtonian BJTs as second B stage. The negative feedback and clamping diodes ensure clean, linear output. |Source=self-made |Date=2008-03-22 |Author= [[User:FDominec|FDom)
• 14:16, 22 March 2008 (hist | diff) User:FDominec/Gallery ‎
• 14:09, 22 March 2008 (hist | diff) File:Filter bass mid treble.svg ‎ ({{Information |Description=A simple R-C filter allowing to set up the treble, mid and bass amplitude. |Source=self-made |Date=2008-03-22 |Author= FDominec |Permission= |other_versions= }})

(Latest | Earliest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)