Re: Great Movie Line from an Old Bob Hope Movie

Aug 30, 2005 414 Replies

They figured out the transistor from Sold State Physics.

The way we make transistors today isn't how they used to do it (look up "Alloy" or "Mesa Transistors" sometime).

There are several different types of Transistors. Look up "Bipolar", "Jfet", and "Mosfet" sometime. There are others.

You can design a circuit using transistors, resistors, and capacitors in any Spice simulator. Or rather, you can design the circuit and have Spice simulate how it would perform. Then you can take that circuit and put in on an IC. They have similar components available.

With the tool I posted, or others, you can make the physical circuit on the IC by selecting components from Libraries.

Standard texts, like Gray and Meyer, have sections on the circuits, as well as a chapter on how the circuits are made on IC chips.

But I've always like "The Art of Electronics" for more of a well rounded resource for beginners.

Robert

down

really

On Fri, 20 Aug 2004 17:37:15 +0100, John Woodgate wroth:

When all your fingers finally go, you still have to hold the nails somehow. I haven't worked out what I'll use after the toes are all gone.

Jim "Lefty" Meyer

I'd tell you to stick the nail through a bit of card and hold that, but then you'd probably be upset that you needlessly mangled all your fingers.

Tim

Google is not the only search engine.

It was written by Pessimist[ snipped-for-privacy@b.c] in message :

You could then try SIMetrix. In 6 months of usage I had only 2 or 3 crashes (that were caused by some conflict? [1]), and few convergence errors (caused mainly by bad design).

[1] I had problems with SIMetrix + AVG anti-virus program.

Disclaimer: I have NO

NN N OOOO N N N O O N NN O O N N OOOO

relation to any software developer!

[]s
Chaos Master®, posting from Brazil. REPLY TO GROUP! MSN: wizard_of_yendor[@]hotmail[.]com http://marreka.no-ip.com "People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee

It was written by Tamim[ snipped-for-privacy@yahoo.com] in message :

Try eBay?

[]s
Chaos Master®, posting from Brazil. REPLY TO GROUP! MSN: wizard_of_yendor[@]hotmail[.]com http://marreka.no-ip.com "People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee

Is there anyone that use OrCAD (Capture/PSpice/Layout) under Mac OS X (under Virtualpc)?


Ciao! from Frank, Naples, Italy Io uso MesNews: Sito: http://mesnews.no-ip.com

Pull hard drive cable, plug into laptop.

There are encryptors available that cannot practically be cracked.

Then again, there are other solutions, from installing keylogging hardware, to cameras, to beating you until you decide to reveal the password.

What is the comment symbol for Eagle's script (.scr) files. "rem" and ";" in the first column and C's /* ... */ all had no effect. Surely there is one...



Hul


Many thanks Helmut.

Hul

Helmut Sennewald wrote:

"Hul Tytus" schrieb im Newsbeitrag news:cg8gbj$je1$ snipped-for-privacy@reader1.panix.com...

Hello Hul, take a look to the included examples like fill.scr in the EAGLE installation directory. They use # in the first column for comment lines.

Best regards, Helmut

--- original fill.scr ---

# Changes the Fill Style # # Simple example to define your own fill styles.

Set Fill_Layer Top Solid; Set Fill_Layer Bottom Solid; Set Fill_Layer tPlace Solid; Set Fill_Layer bPlace Solid; Set Display_Mode Real;

I want to upgrade my component database of Multisim 2001 Personal version, but the update asks for the Multisim Service Pack 1. It's not available on the Multisim site because support for 2001 version is no longer available. Any help of where to find that Service Pack?



Thanks



Rafael


It was written by Hul Tytus[ snipped-for-privacy@panix.com] in message :

Why don't you upgrade your EAGLE?

[]s
Chaos Master®, posting from Brazil. REPLY TO GROUP! MSN: wizard_of_yendor[@]hotmail[.]com http://marreka.no-ip.com "People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee

Helmut - the # sign in the first column didn't work. This is version 3.5, which may be earlier than the version you are familiar with. Also, none of the .scr files in the eagle directory showed a comment symbol. Maybe there really isn't such a feature for the early (??) eagles...

Hul

Helmut Sennewald wrote:

"Hul Tytus" schrieb im Newsbeitrag news:cgb9lb$dv0$ snipped-for-privacy@reader1.panix.com...

Hello Hul, I am not a frequent EAGLE user, but there is a very busy newsgroup about EAGLE. I am shure they can help you with all questions about this software.

formatting link

Forum: User Chat

If you get no answer there, then you can try the "Technical Support" group there.

Best regards, Helmut

installation

Thanks for your answers

AutoTRAX is from the guy who planned to put Protel out of business by offering AutoTRAX for free. The idea being that it would cause the big boys so much pain they'd come and buy him off for $$$$$$$$$millions. Oh what a dreamer!

Good PCB Layout software is more complex than people imagine and the one man operation behind AutoTRAX underestimated what it takes to produce such a tool. Plus, the other essential activities that have to be provided like telephone support and bug-fixing. I'm amazed anyone would risk any mission critical projects to AutoTRAX.

I agree with Leon here that for a few dollars more you can get a very proficient tool like Easy-PC

Prescott

Hi,



does anyone know where I could get simulation model for Micro Devices RF2126 high power linear amplifier? Any format would be fine.



Thanks.


I disagree with this. One guy could write very good CAD suite, but he has to know hardare and be a proficient programmmer and use a real programming language.

No matter how fast the turtle is, turtlebasic is not the toool for the job ;o) Autotrax guy shows no real hardware knolewdge and poor programming skils.

OTOH, take a look in the Linux world and check out PCB, Xelectric and gEDA. I find Gentoo especially cool for this.

Just a few emerge commands should install most recent versions of these packages.

PCB seems to be optimal choice for enthusiasts and maybe even for some pro's.

It's small, simple and very fast.

Schematic in gEDA is useable and for Xelectric I don't know yet. It seems very capable, but I didn't have the time to play with it. At first sight it seemed repulsive to me, but more thorogh look showed that it is a powerfull tool that has been used and refined quite a bit, but that lacks some polish on the basic GUI...

And combination above is a quite a few dollars less- free, to be exact. Very usefull, especially if you use Linux...

Regards,

Branko

Layout does not allow you to combine projects. If you work with your board house, you might be able to work something out with the Gerber plots if your boards only use surface mount components.

FYI, board houses like to deal with even number of layers like 2, 4,

6, ... Odd number of layers will cost you more. If your design only needs 5 layers, duplicate the ground layer to make your project 6 layers.

If your only using two layers, I'm guessing that your design isn't that complicated unless your making home entertainment equipment (double sided with lots of jumpers and hundreds of components). Starting over again shouldn't be that difficult, especially since you have the previous layouts to guide you.

Mark

I did try Kovac's AutoTrax at one time, when it was free - it was seriously overpriced at that time......

Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca new newsgroup users info : http://vancouver-webpages.com/nnq GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca

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