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marking pcb's

I need to mark around 50 student PCB's for a microprocessor design lab. This is to make sure that no one is cheating by...
37 comments posted 22yrs
posted by zapp
37 comments posted 22yrs posted by zapp

PCB design utility?

Hi all, I need a real simple PCB design utility, just to some some layout and print it. I'm making a single sided PCB....
1 comments posted 22yrs
posted by myronx19
1 comments posted 22yrs posted by myronx19

Neatest thing since ..

... open-toed sandals? Saw an electrically heated, insulated travel mug at a "dollar" store and bought one. I didn't ge...
4 comments posted 22yrs
posted by NoSpam
4 comments posted 22yrs posted by NoSpam

LaserWriter 16/600 service manual wanted

In pdf format. My e-mail serice will accept attachments up to 5 MB. (Yes, I know they're for sale on CD-ROM at e-bay, t...
1 comments posted 22yrs
posted by me
1 comments posted 22yrs posted by me

question

I understand the formula for current is:I=E/R and I notice some products say the current for 240v is i/2 that of 120v....
12 comments posted 22yrs
posted by hungry1
12 comments posted 22yrs posted by hungry1

relay diagram

Hello I am trying to fix an old doorbell and hope someone can assist with an idea for a relay that goes on and then off...
2 comments posted 22yrs
posted by mailcuttysark
2 comments posted 22yrs posted by mailcuttysark

Mathematics and A Theory of Babel (cont)

Let's asume for a minute that a time line is by all account constant, and that by moving along it events as they sponta...
5 comments posted 22yrs
posted by aeons2c
5 comments posted 22yrs posted by aeons2c

Basic stamp with gun??

Anybody do this? Connect, for example, a semi-auto pistol and try to fire it with a computer? What's your design? snippe...
6 comments posted 22yrs
posted by datalines
6 comments posted 22yrs posted by datalines

What's a current sink ?

Hi.. I want to know what a "current sink" is. Is there a link which explains it in a not to difficult way ? Can't find i...
5 comments posted 22yrs
posted by hihihi
5 comments posted 22yrs posted by hihihi

"Connection Timed Out" when connecting to Ebay

It's like 7:30 and that's all I can get. Is it like this every evening, or are they going thru a denial of service atta...
0 comments posted 22yrs
posted by alondra101
0 comments posted 22yrs posted by alondra101

Wireless network signal strength...

How to read programetically (say in a C++ program) the signal strength of a wireless network adaptor card ?
1 comments posted 22yrs
posted by RobertoHawkowski
1 comments posted 22yrs posted by RobertoHawkowski