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Author Topic: Electronic symbols  (Read 872 times)
W2EAF
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Posts: 16




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« on: March 23, 2014, 06:21:54 PM »

Hi All:

I'm writing a word document on the fundamentals of electricity to help some friends and relatives understand the subject (and hopefully become Hams some day). I'm having a heck of a time finding some free schematic symbols online that I want to insert into the document as illustrations. Just the basics: battery, fuse, diode, etc... Is there any source of .jpegs or similar that I could use? Not much luck with a Google image search, mostly just  single images with many symbols pop up, and I'm not too savvy when it comes to graphic editing. Any ideas?

Rob, W2EAF
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AE4RV
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Posts: 934


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« Reply #1 on: March 24, 2014, 08:39:25 AM »

You might have to do some legwork on your end if you don't find the individual symbols.

You could take one of the images from Google Image Search with many symbols and crop out each symbol you need. Here is an online graphics editor: https://pixlr.com/editor/

The cropping tool is at the top-left of the tool bar. Crop your symbol, save it, then revert the chart back to original status and crop another one out.

More info on cropping: http://graphicssoft.about.com/od/glossary/l/blcrop.htm

Good luck, 73.

Geoff
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WB2WIK
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Posts: 20542




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« Reply #2 on: March 24, 2014, 09:59:10 AM »

I think the free trial demo version of AutoCAD has all these symbols in its directory (last time I checked):

http://www.autodesk.com/products/autodesk-autocad/free-trial

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K0JEG
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Posts: 631




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« Reply #3 on: March 26, 2014, 08:52:58 PM »

I haven't tried it, but I've heard the software from expressPCB is fairly good and might be useful:

http://www.expresspcb.com/ExpressPCBHtm/Free_schematic_software.htm
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