Gainclone NE5532 based

Stee · 26th December 2010, 07:35 AM

my project EVO use C5200 and have Class A auto-biasing

raindog · 27th December 2010, 02:29 PM

Interesting but it's not a gainclone ( in my opinion at least ), it's a solid state class A amp ( with a opamp as an preamp/buffer ).

tiltedhalo · 27th December 2010, 04:56 PM

I would like to see some more information. 2n222's take care of voltage gain and the 2sc's the current, I tried to sim it and could not get it "working" well, the op amp does all the hard stuff so I think it could be an extension of a chip amp.

pacificblue · 28th December 2010, 08:55 AM

Quote:

Originally Posted by tiltedhalo

I tried to sim it and could not get it "working" well

Of course you could not. Neither could Stee.

Stee · 7th January 2011, 09:56 AM

best think to do is re-create LM's architecture with single components

pacificblue · 7th January 2011, 04:59 PM

The question is, will it work with single components? Somebody knowledgable in the Forum once indicated that certain topologies only work inside of ICs, because of the excellent thermal coupling. If you realized the same topology in discrete fashion, you might face thermal runaway. But I think it would be interesting to try. If you get it to work, you could get the sound of a chipamp at higher output power.

Now we need to find someone who is willing to try it out. Stee, did you just raise your hand?

Stee · 11:27 AM

if you have an architecture with the same devices (sepp)
that can have gain without timbrical imprinting
and also more current in each stage (more again in Power Supply Unit)

for that reason is better

have battery as PSU (with 18+18V AC and double bridge for charge)

enter with signal directly on inverted input
and use feedback as volume control

Stee · 16th January 2011, 11:20 AM

use the mosfet as drivers

MJL21193 · 16th January 2011, 12:03 PM

Wow.

AndrewT · 16th January 2011, 12:22 PM

why is this thread in chipamps?
It is not based on a chipamp.
It is not based on a gainclone.
It is not based on 5532 opamp.

How does the song go
"Move it, Move it"

7th January 2011, 04:59 PM	#6
pacificblue diyAudio Member Join Date: May 2008	The question is, will it work with single components? Somebody knowledgable in the Forum once indicated that certain topologies only work inside of ICs, because of the excellent thermal coupling. If you realized the same topology in discrete fashion, you might face thermal runaway. But I think it would be interesting to try. If you get it to work, you could get the sound of a chipamp at higher output power. Now we need to find someone who is willing to try it out. Stee, did you just raise your hand? __________________ If you've always done it like that, then it's probably wrong. (Henry Ford)

16th January 2011, 12:22 PM	#10
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	why is this thread in chipamps? It is not based on a chipamp. It is not based on a gainclone. It is not based on 5532 opamp. How does the song go "Move it, Move it" __________________ regards Andrew T.

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27th December 2010, 02:29 PM	#2
raindog diyAudio Member Join Date: May 2003 Location: Timisoara	Interesting but it's not a gainclone ( in my opinion at least ), it's a solid state class A amp ( with a opamp as an preamp/buffer ).

27th December 2010, 04:56 PM	#3
tiltedhalo diyAudio Member Join Date: Sep 2005 Location: Melbourne Florida	I would like to see some more information. 2n222's take care of voltage gain and the 2sc's the current, I tried to sim it and could not get it "working" well, the op amp does all the hard stuff so I think it could be an extension of a chip amp.

16th January 2011, 12:03 PM	#9
MJL21193 Account disabled at member's request Join Date: Mar 2007	Wow.

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