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Power Transformer recommendations, please

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Posted on October 10, 2016 at 14:08:52
banpuku
Audiophile

Posts: 1008
Joined: January 19, 2006
 I have not read much on power transformers and which are your favorites. I am looking for highest quality and performance for my 2A3 amplifier that currently uses a Hammond 272DX. I want to "upgrade" if possible.

The PT that I currently have, Hammond 272DX, has had two of the lead wire break away from the core wires. So, I am looking for something of higher build quality / reliability. Also, not sure if PTs make a sonic difference or not, but if so, which PTs in your experience are considered sonically superior. I know this is subjective, but at least its a starting point for me to investigate.

Please give us your recommendations.

Thanks, Pat

 

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What's wrong with the 272DX?, posted on October 10, 2016 at 14:17:51
gusser
Audiophile

Posts: 3649
Location: So. California
Joined: September 6, 2006
 What are you looking for the upgrade to do?

 

" lead wire break away from the core wires", posted on October 10, 2016 at 15:36:05
Chip647
Audiophile

Posts: 2649
Location: The South
Joined: December 24, 2012
 Usually that happens if someone pulls on the wires. The solder joint for the lead out wires can be easily fixed. I have had some very nice transformers suffer lead out failure. I do like the 300 series from Hammond. Edcor transformers are also reasonable.

 

RE: Power Transformer recommendations, please, posted on October 11, 2016 at 04:43:21
awsjr
Audiophile

Posts: 235
Location: Austin, Tejas
Joined: November 30, 2006
 Magnequest 5504...now made by Heyboer to Mike's specs... this is an excellent PT and used my Horus 2A3 amps...


 

5v @ 2a, posted on October 11, 2016 at 10:38:40
gusser
Audiophile

Posts: 3649
Location: So. California
Joined: September 6, 2006
 It's a shame they didn't rate the 5v winding at 3a. In doing that you open the design to also using 5U4's. If there is one component in a tube PS that does affect sonics, its the rectifier.

Or can the xformer do 5v @ 3a if another winding's current is reduced?

 

RE: Power Transformer recommendations, please, posted on October 11, 2016 at 11:11:54
pmaneri@samsontech.com
Manufacturer

Posts: 152
Location: Long Island,NY
Joined: May 22, 2015
 Banpuku - I used to buy Hammond power trannys but found they are A) quite expensive B)Made in Canada C) have 115v primaries. Which need to be compensated for with modern 120-122v AC lines.
So I switched to Edcor. A)well priced B) Made in the USA C) have 120v primaries. I use their output trannys too, very good products. - Pete

 

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