Continuing from post #260....
...and please don't put your words on my mouth. It's a bad habit! Where i said that uninsulated package is the reason for rejection STM parts?? This is the first time i'm thinking of using the Ignore button. Much better option.
...and please don't put your words on my mouth. It's a bad habit! Where i said that uninsulated package is the reason for rejection STM parts?? This is the first time i'm thinking of using the Ignore button. Much better option.
Where on earth do you get that from? It "disappeared" because market demand reduced supply to zero. In case you missed it, the pandemic caused manufacturers to dramatically reduce production. They're now doing their best to catch up.
As for the differences between the LM3886T and LM3886TF: The TF does have higher thermal resistance from junction to case. That part is true. However, the only time I have been able to measure any difference in performance between the T and the TF is with heat sink temperatures around 100 ºC where the LM3886T will perform better. So unless you routinely run your heat sinks that hot there is no practical reason to use the T version - at least not in a DIY build. I use the T version with Keratherm pads in my finished amplifier modules to avoid having my assembly guys mess with thermal goop.
Tom
I missed that part while replying. Specifically one thing i want to mention that here some people are good in twisting words & subject. I repeat again, at the moment there is no good alternative of class-ab chipamp like lm3886. I already proved that with data.
"I already proved that with data." Where was that?
Anyway , tda7293 is a great chip, a good design will "prove" it ,
take a look here: https://www.kaltecs.com/tda7293-composite-amplifier/
Anyway , tda7293 is a great chip, a good design will "prove" it ,
take a look here: https://www.kaltecs.com/tda7293-composite-amplifier/
Typical Audiophool statement.
"Proof is against me but I still trust my judgement against anything else"
Yes you do, we never doubted that 😉
I changed nothing.
My posture there is that you can´t pull 100W RMS out of 2x TO220 cases side by side and I maintain it.
Nowhere did I state 100W is possible or safe, all my examples were both of them putting out 50W RMS, at which TDA7294 will last forever.
Can you read english?
I compared 2N3055 to modern transistors
Which is NEVER achievable driving any real world load (hint: speakers),precisely thanks toparanoid SPIKE protection.
I have heard it triggered many times by difficult lods and it sounds ugly
No, I don´t claim to hear 0.1% distortion as you seem to, but anybody can hear 30-40% horribly chopped waveform caused by triggered VI limiters ... like SPIKE does.
I suggest not mixing drinks with Forum answers ... it´s easy to notice 😉
Cool, hope you can keep your word.
You´re welcome.
Piling up prejudice over prejudice ... and you want to be taken seriously?
Tell that to Logitech (see post #258) .... maybe they have little or no experience? 😉
People from the Kolkata area tend to think they are smart, everybody else is stupid.
No details of test equipment or speakers were provided, so it seems his opinion is all he has at this point.
The importance of speakers, and a description of listening area (room treatment), have been ignored.
ST and TI may be competitors / overlapping in some areas, but it seems ST has a wider range available in different outputs in Class AB compared to TI, and also for the 12V (car) market.
In any case, Class D and earbuds seem to be the future, so manufacturers will bear that in mind for development and production planning.
And as always, volumes are important, 49810 series was discontinued for that reason alone by TI.
No details of test equipment or speakers were provided, so it seems his opinion is all he has at this point.
The importance of speakers, and a description of listening area (room treatment), have been ignored.
ST and TI may be competitors / overlapping in some areas, but it seems ST has a wider range available in different outputs in Class AB compared to TI, and also for the 12V (car) market.
In any case, Class D and earbuds seem to be the future, so manufacturers will bear that in mind for development and production planning.
And as always, volumes are important, 49810 series was discontinued for that reason alone by TI.
See post #257, where i proved that lm3886 is far better than tda7294!
I admit in paper it looks good. But subjectively tda7294 & 93 both sounds the same. Not my cup of tea as i said before.
Proof is against me?!! Check your glasses. In post #257 i already proved that lm3886 is much better performer than tda7294.
Really? I was under impression that you were talking about reliability. Anyway at least you're admiting that ST people are good in marketing, not in performance.
Of course i CAN, but i admit i'm not good in TWISTING words. It is very much evident that the price of such old parts increases over time because of their non-availabilities. ST already stopped making To3 parts & today no one uses To3 package in their new designs. On the other hand lm3886 nowhere nere obsolescence & very much recommended for new designs. Also still very popular & in huge demand.
"Proof is against me but i still trust my judgement againsts everything else"
Lm3886 COMFORTABLY delivers 68w into 4ohm & 38watt into 8ohm load as per their claim. Do you have any evidence in contrary??
Again! I didn't mix anything. What did you notice? 🙄
Because some people are smarter to forced you by pulling your leg. Thank you, you're also welcome. Anyway promises are meant to be broken 😉
Who cares? I don't expect anything from someone who change views depending on situation & i don't take such people seriously! Post #258 also proves Logitech makes CHEAPO quality powered spkrs.
Of course they were smarter. Do you know your history, history about indian freedom struggle?? I think you forgot the famous quote by GKG--- "What bengal thinks today, India thinks tomorrow" !!
It seems you're from gujraat, the homestate of our Prime minister...
https://www.google.com/amp/s/www.in...-modi-said-this-to-industry-body-4054987/amp/
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Take a look at this one: https://www.diyaudio.com/community/threads/folsom-ec7293-pvi-powered-frontend-60-120w-8-4ohm.338275/
Impressive!! But still lm3886 is unbeaten, undisputed winner! A BIG thanks to Tom 😉 🙂
Btw check post #446 of your link for reliability of Tda part 😉
https://neurochrome.com/collections/power-amplifiers/products/modulus-286
Btw check post #446 of your link for reliability of Tda part 😉
https://neurochrome.com/collections/power-amplifiers/products/modulus-286
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Well, i think i can manage two or more people single handedly & of course with evidence! I already put in enough data to back myself but it seems thrashing someone in past didn't go well 🙁
One more thing, i didn't say anything BAD about STM(what i said, in context of tda72×× class-ab chipamp), which is a semiconductor giant! I use many ST product(regulators, transistors etc) with full satisfaction.
One more thing, i didn't say anything BAD about STM(what i said, in context of tda72×× class-ab chipamp), which is a semiconductor giant! I use many ST product(regulators, transistors etc) with full satisfaction.
JMFahey
have you used TDA540's - think they are good for a simple project. I was running them with a Dayton Classic DC-130AS-8 bookshelf.
not a lot of power but I was just testing some other thing and needed an amp to listen in.
I had used them in bridged mode for Stereo.
What I liked is we could use up to 19Volts for 8Ohms - this could be TDA7379 re-packaged maybe.
Like I said earlier, buy a populated board with heat sink, and then change what components you feel like AFTER testing.
Less work than doing it yourself, and then fault finding if there is an issue. Heat sink also seems to be an issue in some countries.
Same advice for other types of amps in general.
There are decent to terrible copies of the chips, the board seller would tend to use a better quality.
And, please try to use a type which is not in short supply, or end of life.
Of course, there is always the second hand market, so your decision, whether you want to tinker with something, build it or listen to music.
Less work than doing it yourself, and then fault finding if there is an issue. Heat sink also seems to be an issue in some countries.
Same advice for other types of amps in general.
There are decent to terrible copies of the chips, the board seller would tend to use a better quality.
And, please try to use a type which is not in short supply, or end of life.
Of course, there is always the second hand market, so your decision, whether you want to tinker with something, build it or listen to music.
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Personally I never look for electronic components at Amazon.com….
Better chances on ebay, but when I say ebay I don’t mean China, no offense Chinese people, I will try to find local honest sellers .
There are many Chinese and Taiwanese copies of the older 5 pin chip amps, some legal, some dubious.
3886 copies have not come to my attention.
But like above, stick to known local suppliers, at least you have some dispute resolution available if you feel the item is not suitable.
3886 copies have not come to my attention.
But like above, stick to known local suppliers, at least you have some dispute resolution available if you feel the item is not suitable.
Why don't you buy which #Asuslover offering. LM3876 is also a nice sounding amplifier, pin compatible with LM3886. Same bipolar tech & with inbuilt Spike protection circuitry.
Absolute worst case, a brick through their window glass will be a profound statement about being cheated.
Not possible with a vendor 18000 km away.
Oh, I do ... who doesn´t?
No matter what you sell.
What matters is absolute percentage ... 1 or 2% means you are doing very well; problem is that 1 or 2% are often (not always) very LOUD, complain on Forums, etc.
Some have unrealistic expectations, some are paranoid and distrust everything.
Often helping somebody is taken the opposite way.
No matter what you sell.
What matters is absolute percentage ... 1 or 2% means you are doing very well; problem is that 1 or 2% are often (not always) very LOUD, complain on Forums, etc.
Some have unrealistic expectations, some are paranoid and distrust everything.
Often helping somebody is taken the opposite way.