Here's a wonderful new design that sounds simply awesome. It's a little fiddly to set up but once set it's audio nirvana! The design might seem rather pedestrian almost naive, with the resistive tail at the input and resistive Vas load but believe me it has been finely honed to produce 2.4W while dissipating only 147W . Excessive you may say? What about climate change? Bah, they're not beholden of this jem - anyway it's power stations not amplifiers that cause that! And of course it's patented and with a big shiny faceplate box and 2KW tranny and 279,000 mF and that 31.4K only the right amount of crap will come down from the PS to enliven the experience!
My mate (when he's got a new battery in his hearing aid) reckons I'm onto something! World best maybe!
Now down to it. All those funny resistor values on the single ended output are paralleled from best sounding 1K 0.43W ****** brand resistors which I can supply along with the inspired PCB. The 100K trimpot is to be fitted in reverse in the northern hemisphere to counteract coriolis forces which have been finely tuned out.
It's a work in progress but it's simply so good now I doubt I can improve it with little SMD bits under the board. It simply goes to show all those gurus with their convoluted designs just can't see the wood for the trees - I'm sure they never listen!
Enjoy.
My mate (when he's got a new battery in his hearing aid) reckons I'm onto something! World best maybe!
Now down to it. All those funny resistor values on the single ended output are paralleled from best sounding 1K 0.43W ****** brand resistors which I can supply along with the inspired PCB. The 100K trimpot is to be fitted in reverse in the northern hemisphere to counteract coriolis forces which have been finely tuned out.
It's a work in progress but it's simply so good now I doubt I can improve it with little SMD bits under the board. It simply goes to show all those gurus with their convoluted designs just can't see the wood for the trees - I'm sure they never listen!
Enjoy.
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Of course it can be simply upgraded to 27,000W with a handful of selected (for Pd) BC546B's, for your next neighbourhood Indian Wedding or Rock Ape aural assault! It is supplied with 0.00001% gold solder for flexibility and tolerance of environmental disturbance.
Hey Greg,
Thanks for sharing. When does full scale production start? 😀
Can you post the schematic of your mate's hearing aid? I think that might be the important ingredient with this amp.
Thanks for sharing. When does full scale production start? 😀
Can you post the schematic of your mate's hearing aid? I think that might be the important ingredient with this amp.
Absolutely,
I've been trying to relieve him of it to investigate but, after losing it many times, he superglued it into his ear making it really difficult to even charge the LI battery from his solar panel!
It'll just have to remain an unknown in the audio nirvana equation - for now!
I've been trying to relieve him of it to investigate but, after losing it many times, he superglued it into his ear making it really difficult to even charge the LI battery from his solar panel!
It'll just have to remain an unknown in the audio nirvana equation - for now!
Yes I know - I am simply drawn to those 1K ****** resistors - they are "Simply the best sounding organic film resistor on the planet"! The 1.01K's or .993K's just don't cut it. So, while it knocks up the parts count dramatically they're only DG$73.4 sheckels each (=14remnibi) so worth every cent. I might say finely balanced with that tail resistor.
Cheers,
Greg
Cheers,
Greg
Hearing aid was funny Greg...hehe, this guy is also very interesting...the Gurú
Ahahahaha...hearing aid is beautifull.
But i am sure, our friend will have some "side effects" because of sound pressure directed inside his eardrums.
The result can be something "pretty" as i am showing ya.
regards,
Carlos
Ahahahaha...hearing aid is beautifull.
But i am sure, our friend will have some "side effects" because of sound pressure directed inside his eardrums.
The result can be something "pretty" as i am showing ya.
regards,
Carlos
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as well as subwoofers inside the ears
just kidding......
hi Guru keep it on and on from 2.4watt to maybe about
2.4kW design without hidden secrets (things we most hate)
I guess this time your talkin'😉
rgds,
hienrich
Sorry, but the IRFI640G is known to sounds veiled.
You should try to fix your mate's hearing aid first and then look for a replacement part for this FET in an otherwise very promising circuit.
You should try to fix your mate's hearing aid first and then look for a replacement part for this FET in an otherwise very promising circuit.
amplifierguru said:
Gee... Greg, how would I do who lives in Northern part of Europe, consult Mr Corioli.. or should I stick to my Tibetan monks? 😉
Edit: Patents, patents... any number and where registered, USPTO?
Cheers Michael
Hi all,
Well what a difference a day makes (hmm... good name for a song!).
While deep in meditation last evening a revelation came to me - bootstrapping the input resistor to ensure a more manageable input impedance so the wondrous nature of this amplifier can be sharedby more - and not confined to just those with buffer drive.
Magic happens! The soundstage just exploded! It's awesome.
I was taken aback that I could actually improve on such a honed pinnacle design.
We just never stop learning.
PS My poor old mate has had to go into hospital to have his 'earing aid extracted using keyhole surgery. 😀
Well what a difference a day makes (hmm... good name for a song!).
While deep in meditation last evening a revelation came to me - bootstrapping the input resistor to ensure a more manageable input impedance so the wondrous nature of this amplifier can be sharedby more - and not confined to just those with buffer drive.
Magic happens! The soundstage just exploded! It's awesome.
I was taken aback that I could actually improve on such a honed pinnacle design.
We just never stop learning.
PS My poor old mate has had to go into hospital to have his 'earing aid extracted using keyhole surgery. 😀
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Sorry, Guru, but...
You've been fooled by back EMF! What you are listening as a stage is echo!
Just see the path - 2k, 100mF, 2k - and input again!
Or does echo improves the soundstage? Have to check it. 😕
😀 😀
You've been fooled by back EMF! What you are listening as a stage is echo!
Just see the path - 2k, 100mF, 2k - and input again!
Or does echo improves the soundstage? Have to check it. 😕
😀 😀
amplifierguru said:
Well, there's your problem right there. All this new-fangled technology simply can't hold a candle to the classic ear trumpet hearing aid design. If your friend had one of those, he'd be experiencing sonic euphoria!
Hey 😎
Are you high on the fumes that your last amplifier prototype expelled while exploding?
😀 😀
Are you high on the fumes that your last amplifier prototype expelled while exploding?
😀 😀
Hi Jorge,
Is it echo - or simply reverberation! I like it. I like it a lot.
Andy,
Yes he used to have a ear trumpet but people were beginning to talk so he invested in a solar powered LI batteried mini unit. So I now know he was prone to long nights of aural euphoria!!
I've a sneaking feeling there maybe further revelations as I peel back the layers. Any ideas.
back to the meditation.
Cheers,
Greg
Is it echo - or simply reverberation! I like it. I like it a lot.
Andy,
Yes he used to have a ear trumpet but people were beginning to talk so he invested in a solar powered LI batteried mini unit. So I now know he was prone to long nights of aural euphoria!!
I've a sneaking feeling there maybe further revelations as I peel back the layers. Any ideas.
back to the meditation.
Cheers,
Greg
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