T&L Publications

I'm all for ultrasonics applications, but if it's motion detection you want, infra-red detectors are cheap, directional, and available in all types of ranges.

Thank you, Caesar! Appreciate your reply!
Found someone with MasterCAD knowledge!
Fascinating what 3D modeling can do!
John

How about 10 watts?
http://www.radioshack.com/product.asp?c ... id=32-2038

Not to discourage Sunil, but that's 10 octaves of frequency range! AND at 50 amps! Hope you have deep pockets for this project.
Could we ask what it is for, in case theres an alternative possibility to achieve your goal?

If you had access to an ultrasonic cleaner, submerge the board in isopropyl alcohol and shake away. Repeat with clean alcohol, dry.

My 2 cents- The ozone disassociates chlorine from the thermoset plastic distributor cap. It's a chloride dusting.
Anybody got a lab?
John

One question, Miguel- Why?
Is this a technical feat or a frugal one?
John

My CNC machine uses "G & M" Codes to direct its' cutting tool in x,y, and z axis. If I draw a figure in AutoCad, any ideas on how I can convert those files to tool path motions? The ACAD files have all the point-to-point xyz coordinates, but the CNC machine wants ASCII commands to tell it where to g...

Don't! Sure fire way to fry your multimeter! Without serious monitoring equipment, you won't measure anything significant. Remove the plug from the head, ground its' threads, and yank away. Bright blue spark at gap says all is well. Wanna get fancy? Build a spark gap- two nails pointed at each other...

GW- Try:
http://www.omega.com/newsearchengine/es ... mit=Search<p>Omega has loads of temp sensors/loggers/accessories.
Have a blast!!
John

Those microwave power supplies make wonderful supplies for that Tesla Coil project your neighbors don't want you to build!

Big project, Bern! I bought a Curtis DC Controller for an electric go-kart I built. 48 volt @ 200 Amps, and that was for a 1 HP DC motor. It used 8 MOSFETS. You'll have thermal considerations, load-sharing, shut-down protection, to name a few. If you still pursue building your own, one source is Adv...

Thanks Dean! I appreciate your insight!
John

Or for $20, the RS will sell you a "CD-to-Cassette" Adapter- cat. no. 12-1999.
(Assuming your car radio has cassette)

Rather, using 12 vdc my have fried them.