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Old 22nd November 2009, 10:04 AM   #1021
p-w is offline p-w
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I just wanted to say thanks to all those who took the trouble to reply to my question about simulators. Some of the posts were especially detailed and informative and I feel I have a better understanding now and appreciate the time people put into composing them. As with most things it seems you get what you pay for. With any physical system your simulations are only as good as the underlying assumptions in the model and the quality of your input data. I'm sorry that my question provoked some strife within the forum, this was not intended.

Best wishes

Phil
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Old 22nd November 2009, 10:19 AM   #1022
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Phil, if you ever need it I'll be happy to answer privately any questions you may have about LTSpice, and I can help you make your simulations more reliable. I usually respond within a day.

- keantoken

Last edited by keantoken; 22nd November 2009 at 10:23 AM.
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Old 23rd November 2009, 07:33 PM   #1023
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Hello

Here is the links to all the Haksa circuits.

Some changes could happen on some of those schematics.

Bye

Gaetan


The amp; diyAudio

The same amp with a CCS; diyAudio


The first tone controls showing volume and balance controls; diyAudio

The same tone controls with minor corrections, without the volume and balance controls; diyAudio


The crossfeed, maby not final schematic;diyAudio


The power supply (not final schematic, may change); diyAudio

Last edited by gaetan8888; 23rd November 2009 at 07:46 PM.
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Old 23rd November 2009, 09:01 PM   #1024
AKSA is offline AKSA  Australia
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Gaetan,

merci beaucoup!

This makes search more convenient, much appreciated.

Hugh
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Old 24th November 2009, 06:10 PM   #1025
tent is offline tent  Germany
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Quote:
Originally Posted by gaetan8888 View Post
Hello

Here is the links to all the Haksa circuits.

Some changes could happen on some of those schematics.

Bye

Gaetan


The amp; diyAudio

The same amp with a CCS; diyAudio


The first tone controls showing volume and balance controls; diyAudio

The same tone controls with minor corrections, without the volume and balance controls; diyAudio


The crossfeed, maby not final schematic;diyAudio


The power supply (not final schematic, may change); diyAudio
thanks a lot! this is a great summary!
if allowed I'd suggest to put this also inside the first post of this thread.. at least a link to it so it will be easy to reach.

Kr,
tent:wq
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Old 25th November 2009, 10:31 AM   #1026
AndrewT is offline AndrewT  Scotland
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Hi,
would replacing either or both of the bc557b/547b with a bc560b/550b or bc560c/550c improve performance?
The 547/557 is the higher voltage version, the 550/560 is the lower noise version and the c is the higher gain version.
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Last edited by AndrewT; 25th November 2009 at 10:33 AM.
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Old 25th November 2009, 11:40 AM   #1027
AKSA is offline AKSA  Australia
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Possibly, Andrew. Why not build up a breadboard, and tell us your thoughts?

Hugh, grinning wildly.......
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Old 25th November 2009, 02:12 PM   #1028
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Hi Hugh

Nice circuit, heres some info of how JLH would have done it, if just for interest, you may want to try some of his ideas, they rock, I have a circuit for headphones based on this liniac circuit for my seinheisers which I use, on off, makes great linestages too.
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Old 25th November 2009, 06:07 PM   #1029
Bigun is offline Bigun  Canada
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Quote:
Originally Posted by homemodder View Post
heres some info of how JLH would have done it
Are we missing an attachment ?
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Old 25th November 2009, 09:22 PM   #1030
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Quote:
Originally Posted by Bigun View Post
Are we missing an attachment ?
Again, sorry, heres a link, the file is to big to attach, its only 450kb.


http://anacon-tech.com/IPdocs/JLH_LINIAC.pdf
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