DIY Electronics Electronics for Hobbiests 181 DIY Electronics 2012-02-06T22:07:43 Barry Adams ch1rality@yahoo.com All About Circuits Forum Home work help!!! 2012-02-06T21:16:34 I need help desinging this circuit on paper so that I can build it in multisim and on a bread board for my digital circuit class. Please let me know... 7977aaead68361b7701791713075162d All About Circuits Forum Convert LCD readout to LED? 2012-02-06T20:12:04 I was wondering if or how you could convert a cheap LCD display (in this case of budget-priced machine tool DRO displays) into an LED/luminescent... 7f81ceb8e01fbb532ccc879d5aad649b All About Circuits Forum 4-QAM Constellation Diagram 2012-02-06T19:20:25 Hello, Below I'm attaching the preview picture of two constellation diagrams for 4-QAM modullation: ... 8847e0159caa940d968f53fe567fa452 Hack a Day Electronic candle protects sleeping infant 2012-02-06T18:49:38 [William] developed this temperature candle as a tool to help keep babies safe as they sleep. It seems that ambient temperature has an effect on Sudden Infant Death Syndrome (SIDS). This device is meant to alert you when room temperature is outside of the recommended envelope. The board hosts an eight-pin PIC microcontroller (12F683P), a [...] e51cc45f29dacc29cd195c628d073aac All About Circuits Forum Schematic from a 1935 Bally Payout Pinball Machine 2012-02-06T18:28:35 I have this great old game and the schematic for it is attached. It is a simple circuit but I can't figure out how/when the the highlighted relay... 1eca711eff754142880efd16979778b9 All About Circuits Forum holding capacitors for a 150 hp dc motor 2012-02-06T18:10:23 I have a 150 hp ~ 180 amps dc motor 600 to 675 volts. If power is lost I need for the motor to continue to run, with load for 1/2 second. Until ups... 9c5e5af64af455f5f2a881152dbb5899 All About Circuits Forum sound to light kit mod 2012-02-06T18:03:27 Hello, First time posting here. I'm an amateur at best with electronics. I have this Velleman MK103 sound to light kit. I have replaced the red... c9dcc15fe0db7a74343b01a3ab66ba36 All About Circuits Forum What is miller effect? 2012-02-06T18:01:39 1. What is miller effect. 2. Do it only applies in non inverting opamps where feedback cap is millerize into Cinput & cout. 3. Or its an general... e62b8e9e04077cdfb54e97c35d715daf All About Circuits Forum Calulating gate capacitance other parameters of mosfet from datasheet 2012-02-06T17:55:31 I have to calculate gate cap, now I got two methods, one is by looking at Vgs vs Qg graph & directly calculate Cgate = Qg/Vgs. Second is finding... 7cd43235b4df27ebdfe9352ec76807e9 All About Circuits Forum Theory question about power lines 2012-02-06T17:40:42 It seems that long distance high voltage DC power lines are possible and indeed are being used over 600km according to wikipedia, which goes on to... 2a28ccf96829b9c188a748811e53073c All About Circuits Forum Help - Relaying a switched motor 2012-02-06T17:19:04 Hi I'm busy rebuilding my father's car and the window winder cables and connectors are a bit old. They work fine but very very slow due to voltage... 6a4fe647dba684e4d6dfc1c407040401 All About Circuits Forum Which type of Relay to Use??? 2012-02-06T17:11:48 Greetings to all Readers, Here is a PCB and a Schematic of a Soft Start circuit board for Toroidal Transformers. I have managed to figure out all... 592acb4a8bd2005e4eb8f77b2a5b100c All About Circuits Forum DC fan controller modification 2012-02-06T17:07:46 Hello! I have a problem with a fan controller. The controller is able to regulate the voltage to the fan from 7 to 15 volts DC (speed regulation).... a18f4997026f42815bd236ed8be710e8 All About Circuits Forum Transformers & Frequency Converters 2012-02-06T16:47:37 I have questions about transformers and frequency converters. First, I think I have a decent knowledge of how transformers work, but there is one... daf130e0b5588c82a4b01b2fadbc8795 MAKE A Scanner, a Calculator, an Atari, and a Hard Drive Walk into a Karaoke Bar… 2012-02-06T14:00:27 DIY projects, how-tos, and inspiration from the workshops and minds of geeks, makers, and hackers @ Make: magazine 9d2fc3bca9dd08cf26dc400131440d5b Toolmonger Hardcore Storage from Swiss Army 2012-01-19T18:53:12 All tools. All the time. Your source for news, information, and reviews of hand tools, power tools, and tools of all kinds. 459ca3417670c7683d1c7cdbe6c010b0 justDIY Project Log Workbench Spot Light 2012-01-16T01:04:49 The camera I added recently gained a new boom mounted partner, a Luxeon Rebel powered spot-light. Consisting of three 200+ lumen neutral-white Rebels, the spotlight puts a lot of light onto a spot on the workbench. I’m going to pick up a diffuser optic for the collimator so it’s not quite such a tight spot. [...] 985654048ce94934c119c2fc3b47f806 justDIY Project Log Fresh PCBs 2012-01-16T01:04:47 I just received these FedEX on Tuesday, fresh from China via Colorado. The first stack of boards is the prototype taillight driver, sporting a tilt switch for motion detection. The second board is a pretty similar design, with a bigger inductor and more compact layout. The intention here is to run a trio of Lumiled’s [...] b76e94ac7a4687c87b3194f4b7bd970c All About Circuits Forum 13 justDIY Project Log 2 Toolmonger 1 Hack a Day 1 MAKE 1