Design

Transfer Circuit for Generator
Build a Transfer Circuit for a 10 kw generator using the following parts: 1 Contactor: *120vac coil *2 N.O. 60amp contacts *2 N.O. 15amp contacts *2 N.C. 15amp contacts 1 Relay: *120vac coil *3 N.C. 15amp contacts 1 Relay: *240vac coil *1 N.O. 15amp coil 1 Capacitor *7... 6 Jul 2010 01:25

Ideas for inexpensive True-RMS Metering?
Hi Guys, I'm looking for the best ideas for implementing an AC power instrumentation front end for a microcontroller or FPGA. What I need to accomplish is to measure 50-60HZ AC in the range of 120V upwards of 600VAC with about 1% accuracy, TRUE RMS. I need to extract: 1. Voltage 2. Current (via current tr... 7 Jul 2010 01:30

Musical and flashing lights water fountain
Hey I am trying to make a dancing water fountain (meaning a water fountain that moves according to the music) and also that lights up (eg leds) according to the music. Anyone can help me please? Any circuits or ideas will be appreciated -------------- Regards, effie ##----------------------... 5 Jul 2010 00:15

SCHOLARLY TESTIMONIAL VIDEO : Joseph Moshe (MOSSAD Microbiologist) Swine flu vaccine 1
Joseph Moshe (MOSSAD Microbiologist) Swine flu vaccine 1 http://www.youtube.com/watch?v=9ranNpzlXIo Part 1 Today, the MSM are not talking about this case any more. Yesterday, they wanted us to believe that Joseph Moshe was a nutcase and a terrorist, arrested for threatening to bomb the White House. Interesting... 3 Jul 2010 03:42

Inverse Marx generator
Let's say you had a really high voltage, low current source. Not very useful. Think nuclear battery, or lightning. So let's say you use it to charge a stack of caps. Then you rewire the caps in parallel. It's like an inverse Marx generator, or a synchronous C-W multiplier. How would you do it? Tim -- De... 12 Jul 2010 22:56

New Product Idea
I was reading today about the recent earthquakes in and near so. Cal, and they were talking about how difficult it is to analyze faults and stuff - they were wondering how the quakes had affected nearby faults. So I came up with this idea: How about a little home seismometer, that sells for about twenty bucks,... 9 Jul 2010 11:39

Where is Archimedes Lever??
Archie, Where ARE you? LOL Now that Cox doesn't provide usenet? ... 3 Jul 2010 05:51

For those across the pond, Need help with clamp ID
This plastic clamp is made in the UK, I'm looking for the manufacturer. See pics in a.b.s.e Thanks ... 1 Jul 2010 18:59

Transfer Circuit for Generator
Generator only connects when Service and Disconnect are off http://jons-math.bravehost.com/transfer.html useful when the only disconnect is in the breaker box, major rewiring of service is avoided, generator is protected, no backfeed into the grid. ... 2 Jul 2010 13:32

looking for books on digital signalling
Hello, I am working for a small company who are working on a system which needs to send digital signals over a noisy medium. We have something working which uses a pair of frequencies (in the 100kHz-1Mhz range) to represent 0s and 1s, but would like something that gives better noise rejection. We are lookin... 3 Jul 2010 22:15