FOR SALE

A Pair of

New Single Ended Tube Output Transformers

HC-203U (20W, 2.5K/3.5K Ohms)

from Hashimoto Electric Co., Ltd.

Tokyo, Japan

Possibly One of the Best SoundingOutput Transformers

Ever Built

As Good as Tamura or Tango, or Better

With 21st Technologies

Based on 60 years of Sansui Experiences

Introducing the Hashimoto HC-203U:

The Hashimoto HC-203U is for applications that require 2.5K or 3.5K Ohms primary with up to 20 Watts output level into 4, 8, 16 Ohms. The HC-203U is equipped with an Ultra-Linear tap for both 2.5K and 3.5k Ohms primary, and its frequency response covers between 30Hz and 60,000Hz (+-3db) - please click the right thumbnail to see the actual chart. The HC-203U is called a universal type because it can be used under 2.5K or 3.5K Ohms of primary through separate B+ terminals. Since the HC-203U has separate B+ terminals, it also has independent Ultra-Linear taps for each primary impedance. The HC-203U is suitable for single-ended applications that utilize popular vacuum tubes, such as 300B, 2A3, KT-88, 6550, EL34 (6CA7), 6B4G, 6A3, and 6L6-GC. The HC-203U is a brand new product that Hashimoto introduced at the 11th Tube Audio Fair in Tokyo on October 8, 2005. The HC-203U is a cost down version of the Hashimoto's best seller, the H-20-3.5U. The differences between these two models are; 1. The HC-203U does not have the protective outer shield that is filled with the special pitch to protect the core from the electro-magnetic interferences and noises. 2. Because of the less protection from the electro-magnetic interferences and noises, the core satisfies a little narrower frequency response. Otherwise, the HC-203U has very similar sound characteristics to the famed H-20-3.5U.

The HC-203U measures 90 (W) x 90 (D) x 83 (H) mm, and weighs 2.0Kg (4.4 LB). The Primary Inductance can be chosen between 10H/100mA (2.5K Ohms) and 13H/80mA (3.5K Ohms). The Maximum DC Current can be up to 130mA. The HC-203U consists of a EI core. 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 ourHashimoto 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.