Search good performance HEADPHONE TRANSFORMER

bigdogwang · 18th June 2008, 11:26 AM

Hi Forediyer,
I want to search good performance outport transformer for my HEADPHONE AMPLIFIER. It use 5842 or 5687 Tube. Could you recommond some brand of outport transformer.

I only know Sowter and Lundahl. How do you think their sound?

Thank you.

Stixx · 18th June 2008, 01:00 PM

Hi,

I guess you are looking for an SE transformer...
Jack Elliano at Electraprint will wind you one (I am quoting dsavitsk here...

), and according to dsavitsk they also sound very good. Lundahls should be worth their money also...

I am currently using Hammond 119DA line matching transformers in my Aikido parafeed headphone amp. They really surprised me in how good they sound for the money.

kevinkr · 18th June 2008, 03:52 PM

I'll second the recommendation for electra-print as I have a pair of custom designed 5K:32 (or 8) output transformers in my headphone amplifier - this is a good choice for the 5842 and 5687 as well.

pkjames · 19th June 2008, 08:22 AM

I know the HAMMOND 119DA is also used in the Mapletree audio EAR+ HD series.

Does anyone know where can I buy the 119DAs?

bigdogwang · 19th June 2008, 10:02 AM

My circuit is volume controller + one 5842 tube + output transformer + HD600 headphone.

Gordy · 19th June 2008, 10:10 AM

The Sowter seems to have a good reputation. It is for AC coupled only, so for parallel feed.

As for single-ended see Figure 3 on this page...

http://headwize.com/projects/showfil...ciuff4_prj.htm

: )

bigdogwang · 19th June 2008, 10:25 AM

Some user say about Lundahl: high frequency is good, but low frequency is so so.

Brett · 19th June 2008, 10:31 AM

Quote:

Originally posted by bigdogwang
Some user say about Lundahl: high frequency is good, but low frequency is so so.

Absolutely not true in my experience if the cct is designed correctly.
I have used quite a bit of Lundahl iron.

bigdogwang · 24th June 2008, 09:04 AM

I research Lundahl web, there are 2 parts, LL1630 and LL1680.
How are their different? Which is better for 5842 or 6SN7 ?

http://www.lundahl.se/pdfs/datash/1630.pdf
http://www.lundahl.se/pdfs/datash/1680.pdf

18th June 2008, 11:26 AM	#1
bigdogwang diyAudio Member Join Date: Nov 2004 Location: sh	Search good performance HEADPHONE TRANSFORMER Hi Forediyer, I want to search good performance outport transformer for my HEADPHONE AMPLIFIER. It use 5842 or 5687 Tube. Could you recommond some brand of outport transformer. I only know Sowter and Lundahl. How do you think their sound? Thank you.

18th June 2008, 03:52 PM	#3
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	I'll second the recommendation for electra-print as I have a pair of custom designed 5K:32 (or 8) output transformers in my headphone amplifier - this is a good choice for the 5842 and 5687 as well. __________________ www.kta-hifi.net

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18th June 2008, 01:00 PM	#2
Stixx diyAudio Member Join Date: Sep 2003 Location: Southern Germany	Hi, I guess you are looking for an SE transformer... Jack Elliano at Electraprint will wind you one (I am quoting dsavitsk here... ), and according to dsavitsk they also sound very good. Lundahls should be worth their money also... I am currently using Hammond 119DA line matching transformers in my Aikido parafeed headphone amp. They really surprised me in how good they sound for the money.

19th June 2008, 08:22 AM	#4
pkjames diyAudio Member Join Date: Nov 2007	I know the HAMMOND 119DA is also used in the Mapletree audio EAR+ HD series. Does anyone know where can I buy the 119DAs?

19th June 2008, 10:02 AM	#5
bigdogwang diyAudio Member Join Date: Nov 2004 Location: sh	My circuit is volume controller + one 5842 tube + output transformer + HD600 headphone.

19th June 2008, 10:10 AM	#6
Gordy diyAudio Member Join Date: Nov 2006	The Sowter seems to have a good reputation. It is for AC coupled only, so for parallel feed. As for single-ended see Figure 3 on this page... http://headwize.com/projects/showfil...ciuff4_prj.htm : )

19th June 2008, 10:25 AM	#7
bigdogwang diyAudio Member Join Date: Nov 2004 Location: sh	Some user say about Lundahl: high frequency is good, but low frequency is so so.

24th June 2008, 09:04 AM	#9
bigdogwang diyAudio Member Join Date: Nov 2004 Location: sh	I research Lundahl web, there are 2 parts, LL1630 and LL1680. How are their different? Which is better for 5842 or 6SN7 ? http://www.lundahl.se/pdfs/datash/1630.pdf http://www.lundahl.se/pdfs/datash/1680.pdf

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