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Are these real Hashimoto ouput transformers and are they worth the money?

75.132.155.75
Posted on March 15, 2016 at 22:55:24
gavinhaley
Audiophile

Posts: 29
Location: St Louis
Joined: January 31, 2016
 Found these on Ebay:

http://www.ebay.com/itm/2-SE-Tube-Output-Transformers-HC-507U-6V6-EL84-KT66-45-/370107307731?hash=item562c1d56d3:m:m5-ZzBRwgu5460uaUe0lEgg

Are these the real deal? Anyone tried them?

Gavin

 

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RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 15, 2016 at 23:29:47
fred76
Audiophile

Posts: 1586
Location: Manila
Joined: February 28, 2004
 Hi,

That's one of Asakura-san's auctions. That is the real deal. One of the best Japanese iron at their price points. I have their MC step ups - will be heirloom items IMO. Don Garber of Fi, if I'm not mistaken uses Hashimoto too as higher level options in his products. I hope that helps.

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 18, 2016 at 08:16:56
tubejack
Audiophile

Posts: 211
Location: New Braunfels, TX
Joined: November 26, 2003



I have a pair of 5K PP 30W in my K&K differential stage output board.

Excellent performance, well worth the price.

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 18, 2016 at 14:29:00
Frihed89
Audiophile

Posts: 15703
Location: Copenhagen
Joined: March 21, 2005
 Under $500. That's nothing for a very good OPT.

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 18, 2016 at 16:49:28
glenz10183@aol.com
Distributor or Rep

Posts: 84
Location: New York
Joined: September 27, 2003
 They make excellent iron with many choices for various applications

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 21, 2016 at 23:14:08
Gera
Audiophile

Posts: 244
Location: Illinois
Joined: April 23, 2000
 I also have the K&K upgrade st-70 as well (triode mode). How would you compare Hashimoto to the original Dynaco transformers on this amp?

regards,
Herman

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 22, 2016 at 15:47:16
tubejack
Audiophile

Posts: 211
Location: New Braunfels, TX
Joined: November 26, 2003
 Mine is also wired triode mode.
It is a completely bottom's up scratch build, wanted a larger chassis, meter's, etc. I have never owned an ST-70 with original Dynaco A470 transformers, so I really cannot offer a comparison.

I built a couple of ST-70 "clones (full pentode EL34 35WPC mode)" in the 90's using the Welborne Labs upgrade board and MQ A470 iron when Mike L was still making them. I recall they were not as detailed as Kevin's design, but then, different driver topology, etc.




 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 22, 2016 at 20:45:49
Gera
Audiophile

Posts: 244
Location: Illinois
Joined: April 23, 2000
 Interesting thing that I find with my K&K upgraded board (stock Dynaco transformers) is that the amp sounds a bit soft and smooths out the attack of every note. It's very polite but very detailed and balanced. Just wondering of it's the driver board or the transformers (power or output).
That is why I asked about the Hashimoto....

Herman

 

RE: Are these real Hashimoto ouput transformers and are they worth the money?, posted on March 23, 2016 at 05:14:31
tubejack
Audiophile

Posts: 211
Location: New Braunfels, TX
Joined: November 26, 2003
 Kevin's board topology is so different then anything else out there I think it would be hard to say without comparing the two side by side .... Bring it to Texas and I'll buy the burritos and cerveza ......

 

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