LM386 Audio Amplifier Simple Setup
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- čas přidán 25. 02. 2020
- LM386 Audio Amplifier Simple Setup
In this video we setup an LM386 using the application data from the data sheet. At first there is now sound, but it just starts working. Who knows why? Wonky Chinesium knock-off IC? Moon in the wrong place?
5 boards for about $22 in about 7 days www.pcbway.com
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HEY YOU ABOUT TO POST SOMETHING STUPID:
Yes, I know my hands are large/fat. It's because of a heart condition I suffer from called Congestive Heart Failure. Here's a link to some information about CHF: cle.clinic/2TdS2Ux
One of the symptoms is that is causes fluid retention, mostly in the hands, feet/ankles, and face.
It will kill me one day. I'm doing ok right now, but someday...
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Here is all the gear I currently use:
Oscilloscope 1: Rigol 1054Z amzn.to/2PRybtN
Oscilloscope 2: Siglent SDS1202X-E amzn.to/31Kk1yH
Power Supply 1: TekPower TP3005N amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A amzn.to/2sNicSe
Signal Generator: JS2800 ban.ggood.vip/d9vk
DMM1: Owon18B amzn.to/2SbIGLs
DMM2: Aneng 8008 amzn.to/2sNQncI
DMM3: Aneng 8009 amzn.to/2S5qeEp
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Soldering Station1: Zeny (Yihua)862D+ amzn.to/2S49z4e
Soldering Station2: KSGR T12 amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 amzn.to/2B2gyRg
I’ve had cheap breadboards do this to me in the past. Spend forever looking for a fault only to touch something and the circuit comes alive, worst part is I’ll have touched the same connection before with zero results. Love the classic circuits videos Paul. I’m glad that you showed the circuit not working and then it suddenly started working because I watched very closely at the setup so I was confident you hooked it up right, it makes me feel a little better seeing that it’s not just me this happens too. Great video Paul, thanks for all you do for us.
Warning adult content ahead “you put it on the wrong hole, not like I haven’t heard that before”
Proof that for this kind of experimentation an oscilloscope will help you keep your sanity. A $15 old tube oscilloscope from a ham radio swap that still works and can reach 5 megacycles will instantly show what is oscillating and amplifying and what is not. I know this is an ancient thread but you do the viewers a disservice when you discourage them from getting a cheap scope.
You are a gifted teacher, thanks so much. Breadboards always confused me but after watching your video I've decided to dust mine off and give it a try using your LM386 setup.
Some of us do have scopes, lets see it on the scope! :{
ben eater talks about cheap breadboards ... and how impossible it is to troubleshoot issues ... the metal the manufacturers use is too maleable and splays out too easily making connections off and on. if I had to guess why ... they are probably not doing a heat and quench to the metal keeping it too soft or the metals used just suk
Many producers would have edited the non working part. I'm glad you showed it as it's real life and it shows newbies that things don't always go right first time for experienced people.
CRANK UP THE POWER SUPPLY YOU NEED TO GET IT TO SHORT MORE!!!!
Oops! You went to pin 8 for Out should be pin 5.. but i guess u find it later😂
10k is ten thousand ohms
Those chinesium bread boards have been the bain of my electronic projects.
Hey! I'm in geezer mode and have had open heart to repair a bad valve. Pacemaker, defibrillator, medication, some years later, still ticking. AND enjoying electronics. Been involved with the stuff for many years and finally have the free time to play with it and have been noticing your vids for some time now. I subscribed and plan to continue enjoying your videos. Yeah, sometimes the magic just happens. Good job, good work, good health.
Love your videos. Invaluable info. Thank you.
the LM380 ! As a 15 year old in 1987 I used this in my GCSE Electronics project :D Passed the practical, was crap at the theory. Still love your lessons, and seeing a varient of the LM380 made me smile.
You know your trial and error really helps me. I'm a beginner at this but you make it relatable. Thank you
I love watching this videos while I'm tinkering along. Thanks dude!
Thanks for spending the time. the fact that you trouble shooted is really helpful to me. Thanks
Love it! A REAL learning thing there.
I love all your videos.. Thank you for all your work.
Thank you, good engineering work, sometimes problem solving work is more valuable than the solution itself.