http://xtronic.org Transmitter power amplifier schematic electronics stereo circuit diagram, schematic power supply circuit Mon, 30 Apr 2012 05:33:47 +0000 en hourly 1 http://xtronic.org/tips/soldering-tutorial-part-3-surface-mount-smd-component/ http://xtronic.org/tips/soldering-tutorial-part-3-surface-mount-smd-component/#comments Tue, 22 Nov 2011 03:50:25 +0000 Toni http://xtronic.org/?p=1540 Part 3 of the hand soldering tutorial. This time Dave shows you how to drag solder and tack & reflow SMD components, and in particular 0.5mm fine pitch IC’s. Including solder paste and hot air.

]]> http://xtronic.org/tips/soldering-tutorial-part-3-surface-mount-smd-component/feed/ 0 http://xtronic.org/tips/soldering-video-tutorial-part-2/ http://xtronic.org/tips/soldering-video-tutorial-part-2/#comments Tue, 22 Nov 2011 03:48:25 +0000 Toni http://xtronic.org/?p=1538 Beginners guide to learning how to hand solder.  

]]> http://xtronic.org/tips/soldering-video-tutorial-part-2/feed/ 1 http://xtronic.org/tips/soldering-tutorial-part-1-tools/ http://xtronic.org/tips/soldering-tutorial-part-1-tools/#comments Tue, 22 Nov 2011 03:46:28 +0000 Toni http://xtronic.org/?p=1536 Dave takes you through everything you need to know to do good quality soldering. Part 1 is all about the tools you might need. A lot of this was already covered in general lab tools video.

]]> http://xtronic.org/tips/soldering-tutorial-part-1-tools/feed/ 0 http://xtronic.org/tips/the-best-multimeter-tutorial-hd/ http://xtronic.org/tips/the-best-multimeter-tutorial-hd/#comments Fri, 30 Sep 2011 05:47:46 +0000 Toni http://xtronic.org/?p=1485 Afroman shows you what to look for in a multimeter, and how to use a multimeter to measure voltage, current, resistance and continuity. Users electronic tags:Integrated Operational Amplifiers, preamplifier opamp, audio tube amplifier schematic, best multimeter to build audio, build a pre amplifier using op-amp, lm358 audio, lm358 circuit applications, pre amp lm358

]]> http://xtronic.org/tips/the-best-multimeter-tutorial-hd/feed/ 1 http://xtronic.org/tips/video-tutorial-free-resistor-color-codes/ http://xtronic.org/tips/video-tutorial-free-resistor-color-codes/#comments Thu, 29 Sep 2011 05:42:23 +0000 Toni http://xtronic.org/?p=1479 This video describes Resistor Color Codes and how to read them. It relates Resistor Color Codes to scientific numbers and engineering notation.  

]]> http://xtronic.org/tips/video-tutorial-free-resistor-color-codes/feed/ 1 http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-2-of-2/ http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-2-of-2/#comments Thu, 29 Sep 2011 05:37:04 +0000 Toni http://xtronic.org/?p=1477 This video continues part 1 by showing how a breadboard, also called a protoboard, is used to build electronic circuits without soldering, by guiding the student through 10 steps to build a blinking LED circuit based on the 555 IC timer chip. The circuit also needs 3 resistors, 1k, 4.7k, and 10k. It also requires [...]

]]> http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-2-of-2/feed/ 0 http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-1-of-2/ http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-1-of-2/#comments Thu, 29 Sep 2011 05:34:06 +0000 Toni http://xtronic.org/?p=1475 This video introduces the breadboard, also called a protoboard, used to build electronic circuits without soldering. The first part of this presentation describes the features of a breadboard. A breadboard (protoboard) is a construction base for a one-of-a-kind electronic circuit, a prototype. In modern times the term is commonly used to refer to a particular [...]

]]> http://xtronic.org/tips/introduction-to-breadboard-protoboards-part-1-of-2/feed/ 0 http://xtronic.org/tips/video-dishpointer-pro-android-satellite-dish-allignment/ http://xtronic.org/tips/video-dishpointer-pro-android-satellite-dish-allignment/#comments Mon, 22 Aug 2011 04:23:12 +0000 Toni http://xtronic.org/?p=1442 The way of finding the satellite when installing a satellite dish, using Samsung Galaxy S and DishPointer Pro application. The next generation satellite finder on Android phone. Point your cellphone anywhere towards the sky and all the satellite will appear on the screen. Users electronic tags:dishpointer android gratis, tutorial dishpointer pro

]]> http://xtronic.org/tips/video-dishpointer-pro-android-satellite-dish-allignment/feed/ 0 http://xtronic.org/tips/how-use-diseq-4x1-diseqc-4x1-switch-video-tutorial-and-introduction/ http://xtronic.org/tips/how-use-diseq-4x1-diseqc-4x1-switch-video-tutorial-and-introduction/#comments Mon, 22 Aug 2011 04:11:30 +0000 Toni http://xtronic.org/?p=1439 In this GoodFTA Video we give you an introduction to the standard 4×1 DISEQ switch, how to set it up, how LNBS connect to it, and what ports you use for what.

]]> http://xtronic.org/tips/how-use-diseq-4x1-diseqc-4x1-switch-video-tutorial-and-introduction/feed/ 0 http://xtronic.org/tips/video-tutorial-fun-with-ultracapacitors/ http://xtronic.org/tips/video-tutorial-fun-with-ultracapacitors/#comments Sun, 31 Jul 2011 07:12:40 +0000 Toni http://xtronic.org/?p=1399 I got hold of some 2600F capacitors that can dump hundreds of amps. Normally these are used in electric cars to handle sudden stops and starts. Instead, I use them to vaporize bits of metal, and show you the 3 most important capacitor equations along the way.   An electric double-layer capacitor (EDLC), also known [...]

]]> http://xtronic.org/tips/video-tutorial-fun-with-ultracapacitors/feed/ 0 http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/ http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/#comments Sun, 31 Jul 2011 07:10:57 +0000 Toni http://xtronic.org/?p=1403 Afroman goes over the basics of how to use an operational amplifier to amplify tiny voltages, and builds a circuit to listen to very faint sounds with a microphone. For more information about amplifiers, Google “inverting amplifier” “non-inverting amplifier” “instrumentation amplifier” “class A amplifier” “class B amplifier” “class AB amplifier” and that should give you [...]

]]> http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/feed/ 3 http://xtronic.org/circuit/video-tutorial-electrical-transformer-ac-to-dc-conversion-in-an-unregulated-dual-rail-power-supply/ http://xtronic.org/circuit/video-tutorial-electrical-transformer-ac-to-dc-conversion-in-an-unregulated-dual-rail-power-supply/#comments Sat, 30 Jul 2011 15:00:35 +0000 Toni http://xtronic.org/?p=1393 Afroman covers the basics of how transformers work, where to shop for step down mains transformers, and how to wire one up to mains voltages without killing yourself. European and North American wiring is discussed. He finishes up with a quick example of AC to DC conversion in an unregulated dual rail power supply. A [...]

]]> http://xtronic.org/circuit/video-tutorial-electrical-transformer-ac-to-dc-conversion-in-an-unregulated-dual-rail-power-supply/feed/ 1 http://xtronic.org/tips/making-double-layer-pcbs-home-video-tutorial/ http://xtronic.org/tips/making-double-layer-pcbs-home-video-tutorial/#comments Sat, 30 Jul 2011 07:22:03 +0000 Toni http://xtronic.org/?p=1414 Small tutorial, how to make PCBs at home, using photoresist methode.

]]> http://xtronic.org/tips/making-double-layer-pcbs-home-video-tutorial/feed/ 0 http://xtronic.org/circuit/lm317-adjustable-voltage-regulator-video-tutorial/ http://xtronic.org/circuit/lm317-adjustable-voltage-regulator-video-tutorial/#comments Sat, 30 Jul 2011 07:01:33 +0000 Toni http://xtronic.org/?p=1409 A tutorial on the LM317 voltage regulator. Shows you how to make a 1.25 to 25V adjustable voltage supply, or choose any other output voltage you want. An example of a fan speed controller is shown. The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a [...]

]]> http://xtronic.org/circuit/lm317-adjustable-voltage-regulator-video-tutorial/feed/ 0 http://xtronic.org/circuit/video-turorial-voltage-regulator-tutorial-usb-gadget-charger-circuit/ http://xtronic.org/circuit/video-turorial-voltage-regulator-tutorial-usb-gadget-charger-circuit/#comments Sat, 30 Jul 2011 07:01:07 +0000 Toni http://xtronic.org/?p=1396 This video covers the basics of linear voltage regulators – what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. The LM341 and LM78MXX series of three-terminal positive voltage regulators [...]

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