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FOR SALE
A Pair of
New Push Pull Tube Output
Transformers
HWC-30-5 (30W, 5K Ohms Primary)
from Hashimoto Electric Co., Ltd.
Tokyo, Japan
Possibly One of the Best Sounding Output Transformers
Ever Built
As Good as Tamura or Tango, or Better
With 21st Technologies
Based
on 60 years of Sansui Experiences
Introducing the Hashimoto HWC-30-5:
The Hashimoto HWC-30-5 is a mid range
cover type Push Pull output transformers for a tube power amplifier. The
HWC-30-5 is designed for Push Pull
applications that require 5K Ohms primary with up to 30 Watts output level into
4, 8, 16 Ohms. The HWC-30-5 is equipped with an Ultra-Linear tap, and its
frequency response covers between 10Hz and 50,000Hz (+-1db) - please click the
right thumbnail to see the actual chart. The HWC-30-5 is suitable for
applications that utilize popular vacuum tubes, such as EL-34, 2A3, 6A3, 45,
6L6-GC, 6B4G, and VT-52. The HWC-30-5 is a brand new product that Hashimoto
introduced at the 12th Tube Audio Fair in Tokyo on October 8, 2006.
The
HWC-30-5 measures 90 (W) x 90 (D) x 83 (H) mm, and weighs 2.0Kg (4.4 LB). The
Primary Inductance is 100H, and the Maximum DC Current can be
up to 100mA x 2. The HWC-30-5 is consisted of an EI core, and the core material
is 0.35mm Orient Core Z, which is the directional silicon steel, from Nippon
Steel Corporation, equivalent to M6. Please refer to our
Hashimoto Transformer Technical Aspects page for more details on technical
details as well as Hashimoto Product Design Philosophy.

Who is Hashimoto Electric anyway?
Hashimoto is by-no-means a new comer in this very traditional, but exciting
industry. Hashimoto Electric, Ltd., in Tokyo Japan has been a
long-time Sansui
transformer OEM (since 1960’s). Hashimoto merged Sansui’s transformer business
in 1978, and Hashimoto was the company who reproduced the AU-111 transformers
when Sansui reissued the famed AU-111 in 1999 as the AU-111 Vintage. As a
matter of fact, Hashimoto is the only company that still carries the original
Sansui logo on its product lines, and some of Hashimoto’s key engineers are
ex-Sansui engineers.
Today, Hashimoto Electric produces not
only various traditional transformers that Sansui pioneered many years ago, but
also high-end tube amp transformers under its own brand name. The amazing
thing is that all Hashimoto transformers are still handcrafted one-by-one by
very skilled and experienced employees (Please refer to the actual photos
I took when visited Hashimoto last June).
Because some of Hashimoto engineers have
more than 40 years of transformer designing experiences through out Sansui and
Hashimoto era, all Hashimoto transformers still
maintain the superior characteristics and sound of Sansui transformers. In addition,
all Hashimoto transformers are redesigned from the ground up. This means
that Hashimoto transformers are the 21st Century products that have been
fine-tuned with computer aided programs and have utilized new materials that
were simply not available forty some years ago. As the result, the
H-203U is one of the leading Hashimoto products that have been winning
reputations among critics as, "The sound through
Hashimoto transformers simply belongs to a different class compared with that of
competitions."

Who are we? We are a Michigan based
corporation being in the IT related business since the early 1990's. We
have been exploring the web based business opportunities since 2002, and today
we are the authority of Sansui literatures with more than 1,000 customers.
Almost all of our Sansui literature business have been conducted through web
space for the last three years. Now, we are expanding our horizon into the
hi-fi hardware business by introducing the best products available in the world.
Because our business is entirely based on the web space, our priority is nothing
but the customer satisfaction and customer support. Please purchase our
products with confidence.
Should you have any questions related
with this product or our existing business, please don't hesitate to send us an
e-mail at
support@obsinc.us.