Search found 2123 matches

by jwax
Fri May 07, 2004 4:43 am
Forum: General Discussion
Topic: Transistorized water flow?
Replies: 18
Views: 4135

Re: Transistorized water flow?

Call me lazy, but a small float switch to open a solenoid valve with a flow restrictor seems easier. Could be battery operated, solar powered.
by jwax
Wed May 05, 2004 4:38 am
Forum: General Discussion
Topic: IC chips by commitee.
Replies: 9
Views: 1971

Re: IC chips by commitee.

I look at it as a new tool, semiconductor technology, turned loose on the imagination of designers. Suddenly they could design dozens then millions of devices in a single small package.
Like introducing a wood saw to the home building industry way back when.
Why so many? Because they can.
by jwax
Tue May 04, 2004 6:03 pm
Forum: General Discussion
Topic: wireless printing
Replies: 2
Views: 862

Re: wireless printing

by jwax
Tue May 04, 2004 5:50 pm
Forum: General Discussion
Topic: worlds largest IC
Replies: 14
Views: 2976

Re: worlds largest IC

Analogous to mapmakers that purposely put erroneous info on their maps. If Joe Blow decides to become a "mapmaker" by copying and selling those maps, he is jailed for infringement due to the "errors" that the real mapmaker added. I fabricated semis before, and the way we "get small" is to reduce pho...
by jwax
Tue May 04, 2004 4:48 am
Forum: General Discussion
Topic: worlds largest IC
Replies: 14
Views: 2976

Re: worlds largest IC

And to take a peek at some chip designers artwork:
http://micro.magnet.fsu.edu/creatures/index.html
by jwax
Mon May 03, 2004 3:46 pm
Forum: General Discussion
Topic: H bridge mosfet choice?
Replies: 7
Views: 1872

Re: H bridge mosfet choice?

tj may have meant Maxim.
www.maxim-ic.com
by jwax
Mon May 03, 2004 3:41 pm
Forum: General Discussion
Topic: Electrolysis
Replies: 9
Views: 2155

Re: Electrolysis

Externet, there are electrolytic desalinization processes, but is a very expensive way to get the salt out. Reverse osmosis, de-ionization, molecular sieves are all effective to a degree, but also expensive. We find a cheap way to do it, and well, rich isn't the word for it! $$$$$$$$$$!
by jwax
Mon May 03, 2004 3:33 pm
Forum: General Discussion
Topic: Laser Alarm
Replies: 17
Views: 3605

Re: Laser Alarm

Yes Michael, it will dial up to 4 telephone numbers until it makes a human connection.
Check out: http://www.x10.com/security/x10_ds7000.htm
by jwax
Mon May 03, 2004 10:10 am
Forum: General Discussion
Topic: Metal detecting
Replies: 20
Views: 4854

Re: Metal detecting

Do you simply want to count these metal pieces, and if so, what sort of rate would they be going through the detector? One/hr, one/millisecond etc.?
by jwax
Sun May 02, 2004 2:45 pm
Forum: General Discussion
Topic: surface mount transistors
Replies: 3
Views: 959

Re: surface mount transistors

Just another fairly effective way of eliminating reverse engineering of their circuits as well as making repairs difficult. They build just fine, because the mfg knows whats where, but lo, the user/repair tech is left in the dark. :(
by jwax
Sun May 02, 2004 2:30 pm
Forum: General Discussion
Topic: Metal detecting
Replies: 20
Views: 4854

Re: Metal detecting

Bern, if you're going to detect particles down to grains of sand-size, and up to 1/4", I think ultrasonics would be a better option. Depends also on flow rate, and the actual contents of the liquid. Any more details?
by jwax
Sun May 02, 2004 8:26 am
Forum: General Discussion
Topic: Laser Alarm
Replies: 17
Views: 3605

Re: Laser Alarm

Hi Mike!
So what is a "laser alarm"?
And, are you looking to find a dialer circuit? :confused:
by jwax
Sat May 01, 2004 4:11 pm
Forum: Robotics
Topic: CNC question
Replies: 12
Views: 5227

Re: CNC question

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by jwax: Deal- I have access to a CNC laser cutter, so if you end up wanting another quote, let me know! There's nothing like "rolling your own", but if you need a cutting, you need a cutting! :) John...
by jwax
Thu Apr 29, 2004 4:05 am
Forum: General Discussion
Topic: getting rid of noise on car radio
Replies: 9
Views: 2229

Re: getting rid of noise on car radio

It measures how much this will cost you, Grant!
hehe! :)
by jwax
Tue Apr 27, 2004 3:27 pm
Forum: General Discussion
Topic: Ultrasonic Cleaner Schematic
Replies: 3
Views: 2276

Re: Ultrasonic Cleaner Schematic

Also, keep alert for industrial equipment auctions- many different industries use ultrasonic cleaners.
Again, if you find a source for components, let us know! :)