LM317T Voltage Regulator with Pass Transistor

This beautiful 21" Sony KV-2145R circa 1982 came to my workbench because it wouldn't turn on anymore. Join me in my quest of trying to bring it back from the dead!



http://www.youtube.com/watch?v=suvT1J1Nz48&hl=en

At the heart of this mod are the Texas Instruments PTR08100W 10A, 4.5V to 14V input switching regulator and the RC helicopter voltage display. intro music by Kevin MacLeod filmed with a Kodak Zi8 edited in Windows 7 with Windows Live Movie Maker



http://www.youtube.com/watch?v=2evK3L3TbtM&hl=en

All RcSuperhero planes launch like a rockets (or hand throw) and have AWESOME flight characteristics! If you would like the $19.95 PDF plans see my website www.rcsuperhero.com



http://www.youtube.com/watch?v=c1F1OpRxY-k&hl=en

Experiments •Design of DC Jones chopper with R and RL Loads and characteristics study of Commutation and chopper Technical Specification •Input voltage 30V DC •Output Voltage 0-30V DC •Current rating 1A Features •One potentiometer is provided to vary the duty cycle •Inbuilt Power supply for Converter and triggering pulse •Inbuilt resistive Load •Power ON indication Switch •Detailed mimic diagrams are drowned to facilitate the experiments



http://www.youtube.com/watch?v=z5BKDQYZmdE&hl=en

Here is my second video with the full description of the circuit. And yes it does charge all iphones/ipads/ipods. Supplies needed: 5v voltage regulator, two 100 ohm resistors, switch, very thin wires, altoids tin, USB port, 9v battery dock, electrical tape, 9v battery.



http://www.youtube.com/watch?v=VBAY_j_4CJc&hl=en

My boat was reading 12.2 V at all speeds on the battery, a good sign that something is wrong, not charging. This is a 10AMP regulated system, after looking into specifics, charging should be around 13-13.5V. For motors without regulators 14+Volts is typical. Here is a test to try on a 3 wire...



http://www.youtube.com/watch?v=Or9gSDhydA4&hl=en

Ein Enwicklungsboard für die Mikrocontroller Mega8 und Mega32 von Atmel. Eine Befehlsbibliothek ermöglicht einfachen Zugriff auf die verschiedenen Komponenten, wie zB eine 7-Segmentanzeige oder einen Schieberegler. Die Bibliothek wurde in der Sprache C geschrieben. Ich habe für Aufbau und Planung etwa 12 Stunden gebraucht. INFO: Dieses Board habe ich entwickelt. Es gibt momentan keinen Schaltplan oder ähnliches. Sollte jemand jedoch Interesse daran haben, kann ich den Schaltplan gerne erstellen und veröffentlichen. Das gleiche gilt für den Sourcecode (Diesen kann man jedoch auch gerne vom Video abschreiben :p) A development-board for Meag8 and Mega32 microcontrollers of Atmel. A code library allows us easy access to functions like SetDisplay([number]) for the 7-segment Display or ReadSlider() to read the value of the slider. The lib is written in c. For planning and building a needed about 12 hours. info: I developped this board. Currently, there's no schematic or similar. If someone's interested, I would create a schematic and publish it. The same applies for the code. (But he code you can also copy from this video ;p) Please rate and comment! Is my english good enogh to translate my videos?



http://www.youtube.com/watch?v=sZSrHNwJmvU&hl=en