1W amp built from LM386 and spare parts. MASSIVE DOOM TONE
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- Опубліковано 23 сер 2024
- Goal of this video was to see if I could build an amp with spare parts around the shop. Results were not as expected but still pretty cool nonetheless.
This amplifier was based off the Little Gem 2 by runoffgroove which you can find schematics here www.runoffgroov...
I did not have all the parts necessary to build it as drawn so I had to improvise a little bit. The end result was a bridged LM386 preamp and power amplifier. While in the midst of the project I felt like a bridged power section really compromised your versatility as you would have to essentially double any tone controls or tone shaping circuitry.
A ridiculous amount of distortion was achieved by bridging pins 1 and 8 of each LM386 together with a 10uF capacitor and then connecting them to each other. A result was nasty thick distortion with out of tune harmonic overtones.
It would be very cool to experiment with some more with building small amps from these chips but the purpose of the video was to crank out an amp in an afternoon.
Enjoy!
![Дон ДОН, Алаудинов и СБЕЖАВШИЕ из под Курска ахматовцы 😁 [Пародия]](http://i.ytimg.com/vi/dEfCf5IK26Q/mqdefault.jpg)
If you go back to it, the buffer actually uses a Jfet, you can setup multiple stages of that to allow for more control of the tone by inserting a tonestack. Check out the 1Wamp ... you’ll see what I mean.
I really like that you show the not so great moments in building electronic projects. Most channels show these easy 2 minute builds with no problems. Not ever realistic. I usually say the exact words you did at least twice every project. Also came to the same conclusion you did regarding just using one chip instead of two. The volume boost with 2 compared to one is very disappointing. The noise level was terrible with two, no problem with one. In my experimentation with the dual I did come across a circuit where it was insanely touch sensitive to your playing pressure. Touch the strings very lightly and 100 percent clean. More pressure both louder and distortion. Play hard and all out thick distortion. Or anywhere in between. However not practical for most playing.
Late to the party but hey that's a pretty darn cool little amp you built mr. Jim Morrison looking dude!
LMAO I was like Jim where you've been this past 50 years
Starting with a "simple" project that morphs into a more involved project. So, it's not just me
Oh no. It's not just you. No no. No Sir.
With the gain up I hear badass Celtic Frost tones
And Obituary tonez aswell, lotta bass and mids and bit of treble to not make it too woofy, sounds perfect.
I love this! And thank you for not editing out the god damn its!
It is an important part of the process!
Super cool man!
In my experience, it is absolutely essential
That thing is a fucking beast. Like I'd buy that, at least in a different housing or with some shielding. One good thing coming out of this Quarintine are these videos for sure
10:03 This thing sounds perfect for obituary! :D
Les expérimentations avec le lm386 sont vraiment surprenantes, j'adore
Précisément! Regardez dans la pédale EQD Acapulco Gold, qui est simplement 2 étages du LM386, avec le gain du premier maximisé, et le gain du second est le seul bouton de la pédale. C'est vraiment un amplificateur opérationnel fantastique, et tellement bon marché !
How the fuck do you grab a handful of shit from your attic and a speaker from grandpa's radio and get a better sounding amp than the $500 POS I bought. Must be the literal blood, sweat, and burnt flesh that goes into it. Awesome video man!
I think I’m gonna try to build something similar. Thanks for the inspiration!
I wish you made pedals. Every other company I’ve contacted has been impossible to work with.
I had to give this a thumbs up just for the Thin Lizzy bit! Kick ass! Nice work.
The LM386 is a demonic object from a parallel dimension. There are circuit tweaks yet to be made. What could be done with gyrators and hard clipping, I wonder…
Niice. Sounds a little bit like the Acapulco Gold by Earthquacker. maybe it's the cuz they also use two LM386's.
The LM386 is a sonic occult secret. Slew Rate is the key.
If you're lucky you can pick up and decode FM radio if you plug an unshielded wire into the input.
Wowza. Great work. Matt Pike will see this and special order one
Shout outs to Radio Shack, hell yeah!
You build like me, “Shit!” “Damnit!”
It's so damn good.
wow that is very doomy... almost got that Obituary sound too...
I found this video because I've got some lm386's laying around a couple 8" eminence, some NOS germanium transistor and some germanium diodes too.🤔
no Volta power stacks? Leyden jars?
Pretty cool man..
It's a vehicle CB radio speaker isn't it?
Your process is clumsy but your results are great
Hi man. What changes do you do between gem II and your amp?? I would like give a try
Very nice dude!
Nice but I want one that is battery operated. Also, love to see how you did the pcb
Great stuff man!!
Gnarly. How was the volume level with that thing cranked? You may have invented the ultimate studio Doom amp.
In a 4x12 it was loud enough to feel a little low end rumble but the neighbors won't be freaking out. The speaker out can be used to send signal to a larger power amp as well and then it could be insane.
There you have your 666th subscriber!
Hey man I see that you have a Valvestate head, I also have one but it makes a loud 'POP!' noise when I turn it on, after that it works ok but... if I plug ANY guitar pedal, the signal gets barely noticeable and it pretty much doesn't sound, even at full volume. I've tried these pedals in other amps with different cables and I know everything works. Do you have any idea on what may be going on? Anything to start looking at? Thanks BTW
If you're using any kind of surge protector or adapters that cab mess with your ground. So make sure nothing it interrupting your amps connection to ground.
@@jokinmyass9446 I had to take it to a local amp builder and he found some loose connections coming from the power input, also the main 4 capacitor were replaced and now it works like a charm. I also replaced the reverb tank with one gotten from amplified parts and I love this thing! greetings from Colombia.
I see that Marshall head..😎
The Purgasound 2021 ©
I'm trying to build the little gem mk2 as a first audio electronics project. Waiting on some more parts to come in. I'm trying to understand what modifications you made to the original schematics.
Am I right that the doom sound was created by linking the 1-capacitor-8 connections of both LM386's together?
Would love to throw in a switch to make it doom.
Its pity you dont have exact schematic for it :(
DIY toobz amplifier
Peavy is king, lol.
Thanks for sharing. Is it possible to remove from lm386 out of tune distortion?
Yes I've got some strange intermodulation going on either from a shortcoming in the power supply filtering or possibly how the LM386 has its outputs connected. I made this version out of some parts I had laying around. If I do another amp like this I would make some changes to have some more flexibility and beef up the power supply for sure.
How did you get that harmonic?!
think if you used some HVAC tape on the inside (like a faraday cage} of the plastic shell it would help mitigate some of that RF being emitted by your phone?
won't work
can i buy that amp ? it sounds amazing !
Sure
@@purgasound niiiice how much would you want for it ? and could you send it to germany ?
@@purgasound any news? :) i am still interested :)
@ You are better off building your own amp. They are pretty easy to make once you have the parts. You can repurpose something to use as the amp shell.
Jim Morrison start making guitar amp ;)
kek lMAO
shut up and take my money!