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Old 8th January 2013, 06:31 PM   #1
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Default How to calculate output transformers

How to calculate necessary spec for output transformers:

-For example heaphone amp for HD600 300 Ohms?
-Other example line amp for power amp with input impedance 2K?
-linea amp for tube power amp with input impedance 100K?
-Other loads?

What I need is to know how can calculate, so I learn and also can be calculate for future projects.

Help will welcome.
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Old 8th January 2013, 10:29 PM   #2
Zibi is offline Zibi  Poland
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.turneraudio.com.au/education+diy

Last edited by Zibi; 8th January 2013 at 10:31 PM.
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Old 9th January 2013, 10:51 AM   #3
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Thanks for the link, I'm lost with a lot of information, could you be more precise?
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Old 9th January 2013, 10:59 PM   #4
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Quote:
Originally Posted by merlin el mago View Post
Thanks for the link, I'm lost with a lot of information, could you be more precise?
I once read in an technical article that 1 turn/spin in the primary winding reduce the impedance in 1 ohm, but I dont know if this is true.

I also will wait the experts opinion in this topic.
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Old 23rd January 2013, 06:30 PM   #5
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Originally Posted by FullRangeMan View Post
I once read in an technical article that 1 turn/spin in the primary winding reduce the impedance in 1 ohm, but I dont know if this is true.

I also will wait the experts opinion in this topic.

Can you understand Portuguese? try this site, it has a full course on output transformers! Already have ready calculations of transformers for power between 5watts and 40Watts!

link >> Transformadores de saída para Audio Valvulado / Output transformers for Tube Amplifiers
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Old 23rd January 2013, 06:50 PM   #6
Zibi is offline Zibi  Poland
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http://www.geofex.com/article_folder...es/xformer.htm
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Old 23rd January 2013, 06:55 PM   #7
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Search for Wolpert transformer design, I believe anywhere in this site.
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Old 24th January 2013, 01:01 AM   #8
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Quote:
Originally Posted by edsonsimplicio View Post
Can you understand Portuguese? try this site, it has a full course on output transformers! Already have ready calculations of transformers for power between 5watts and 40Watts!

link >> Transformadores de saída para Audio Valvulado / Output transformers for Tube Amplifiers
Valeu Edson, mto obrigado por este Link, ñ conhecia este site, vou dar uma lida com carinho.
Abrç
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