View Full Version : LM386 for Eagle Library?

03-15-2007, 11:05 PM
I've been trying to bring myself up to speed in Eagle so I can actually post decent schematics for my Stamp/Emic/Ping/PSC 'bot in the completed projects forum.

Nowhere in the Eagle library have I found the LM386 Audio Amp (8pin dip). It's so common I figure I must either be looking in the wrong place, or overlooking something, or both. Every other opamp in the universe seems to be there. I downloaded more libraries from the Cadsoft site, but haven't seen it there either.

Anybody have this, or can anyone tell me where to look? Thanks in advance.

When the going gets weird, the weird turn pro. -- HST

03-16-2007, 02:08 AM
The Eagle "linear" library the NE5534N or OPA134P might be similar. At least a good place to copy from if you want to make your own LM386 part.


T Chap
03-16-2007, 02:56 AM
Making Librarys is pretty easy. There should be info on it in the manual, I would suggest getting some experience making your own, it will be rewarding later as you don't have to wait if the library isn't online.

Some tips:

1. Find something similar(same number of pins, same package)
2. Under the control panel, press Open Library, load the Library for the Similar part.
3. Start with loading the symbol of the similar part, look at it in the window, copy the entire part with the scissors, and go command
4. Go to the Control panel again, press NEW LIBRARY, type in the name of the NEW LIBRARY
5. Learn what the 3 buttons are at the top of the edit page, the far right one is the open/create Symbol button, press that one
6. A small window pops up, type in the small space "YOUR NEW PART NAME" ie "LMXYZ"
7. Press the paste button(has some yellow on it nest to scissors) place the part in center
8. Modify the symbol as needed---
9. Press the save button

I'll post the rest if you learn this much.

03-16-2007, 02:58 AM
Thanks -- I'll give that a go this weekend when I have some time to spend fiddling.

When the going gets weird, the weird turn pro. -- HST

03-16-2007, 03:02 AM

third library down

I wish they would make a searchable index for all parts across librarys but the people that do this kind of stuff are just to busy working on stuff to do something like that I think.

386.1.brd 6,517 989 Mon Dec 4 18:34:33 2006

this is a revised .brd file of a lm386 audio amp.the parts list can be found here: http://members.shaw.ca/roma/ten.html
Uploaded by G. H. Lunday <lhg at cableone.net> from home

Think Inside the box first and if that doesn't work..
Re-arrange what's inside the box then...
Think outside the BOX!

T Chap
03-16-2007, 03:05 AM
All you have to do to search is go to the library or projects page, in your browser look under edit>find type 386 and it will show you all the 386 findings on the page

With the brd only you still do no have a library part though.

Post Edited (originator) : 3/15/2007 8:12:40 PM GMT

03-26-2008, 10:14 AM
Did you ever get this figured out? I am working on building a 386-based audio amp... hard to do without one in the library :)



Michael Shimniok
Bot Thoughts robotics chronicles (http://bot-thoughts.blogspot.com/)

03-27-2008, 05:21 AM
The LM386 is a very old part, there are much better devices available.


Amateur radio callsign: G1HSM
Suzuki SV1000S motorcycle

Loopy Byteloose
03-29-2008, 01:03 AM
If it isn't in the library, there are ways to 'cheat' the program and use any 8 pin DIP package to build your circuit. Just relable the drawings and get on with it.

I find that the library function is the hardest, most tedious part of and CAD circuit board design. You can add your own image to it, but the question of where is just as complex and the question of how. I find myself searching constantly for non-existant connectors and often just use something with the same pin spacing rather making an exact library entry for what I am having to use. Again, I just relable it to what is appropriate.

This is by no means onlyиan Eagle problem. All of the similar programs have huge libraries, but none are complete. Other than this, I love Eagle as it works well is the best value out there. I have sent files to Mainland China and had beautiful boards returned in a few weeks.

PLEASE CONSIDER the following:

Do you want a quickly operational black box solution or the knowledge included therein?ииииии

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