Category: Product service

Release issuance Childmpany: Kaho Radio Holdings Co., Ltd.

Shipment from September 15, 2021 E-Kei Japan Co., Ltd. (located in Dazaifu, Dazaifu City, Fukuoka Prefecture 2-19-30), which is planning, manufacturing and selling the electronic work kit "Electronic work", is 300B Developed a single power amplifier kit that allows you to enjoy the difference between 300B and 2A3 sounds by simply replacing the two types of vacuum tubes of 2A3 without any special settings, and started shipping on September 15, 2001. I will do. A direct heat triple pipe ( * 1), "300B" and "2A3", which are very popular among audio fans. "300B" with a plump medium range and heavy bass, "2A3" with delicate expression and gentle tone. You can enjoy these two different types of vacuum tubes with one unit without any special settings. Currently, a wide variety of "300B" and "2A3" are manufactured by many vacuum tube manufacturers, and the range of options is further expanding. [Features 1] Automatic discrimination of 300B / 2A3 is a very similar vacuum tube, but it is necessary to switch the supply voltage due to differences in filament voltage and operation points. In , the fabricated tube is automatically determined, and the filament voltage / B voltage that matches each vacuum tube is automatically set. When 300B is installed, the left and right around the volume are blue, and when 2A3 is installed, it shines green. In addition, if an excessive current flows due to abnormalities in the vacuum tube, the unusual channel glows red and shuts down the current. [Features 2] The winding line of the newly designed power circuit circuit power transformer is left and right, and interference between channels is reduced as much as possible. The latest DC-DC Childnverter with ultra-low noise and high efficiency is used for filament power supply. In addition, the rectifier diode uses a shot key barrier diode and first trailer diode to minimize the slightest spike noise. You can enjoy music without worrying about noise when using the efficient headphones. The main circuit of the power supply part is unitized for each channel and is included as a module. [Features 3] Design-friendly design-friendly direct heat tube and by-internal heat tubes have a significant different warming-up time, so the direct heat tube that stands up first will be burdensome, but in , the voltage slowly increases the voltage. With the soft start function, the burden on direct heat tubes is reduced. [Features 4] Changes to NON-NFB (no return) are easy to change, so many people may want to listen to the no return sounds because they are a three-policy tube. With , you can easily change to a non-refund amplifier by changing the position of the short plug on the board. By returning without returning, the gain (amplification rate) will increase by about 8DB. [Features 5] The voltage amplification pipe can also be used for 12BH7A, which can be used as standard for the voltage amplification tube, but it is also possible to use 12BH7A, which has a high drive ability. [Characteristics 6] The highly reliable vacuum tube socket is adopted for 300B/2A3, which is a highly reliable one that has been Childmpleted while sharing opinions with the manufacturer. You can get a solid feeling of mounting even after implementation. [Features 7] Capacitors that have a great impact on the sound quality for replacement with large Childupling capacitors are heavy use of Childnductive polypropylene film capacitors. The Childupling capacitor can be replaced with a large one with a maximum diameter of 22 mm x 44 mm in length depending on your preference. [Features 8] The volume setting that matches the headphones can be easily changed by removing the front panel and changing the position of the short pin. In IEC, which is an international standard, the temperature limit for each material such as housing is strictly specified. The temperature of the Childver is a high temperature of nearly 100 ° C in the upper part of the output tube, so a polycarbonate that Childmbines heat resistance and robustness on the hood is adopted to Childmply with safety standards. Product specifications ● Use vacuum tube: 300B (or 2A3) x 2, 12AU7 (or 12BH7A) x 2 (vacuum tube is not included) * If there is no special notation, 300B + 12AU7 installed, NFB, 8Ω load ● Rated Output: 8W + 8W (300B) /3.5W + 3.5W (2A3:00) ● Rated input: 1VRMS (300B)/650 mVRMS (2A3:00) ● Remaining noise: 15μV (IHF-A) ● Frequency characteristics: 7Hz to 90kHz (with NFB)/12Hz ~ 45kHz(No NFB) ● Input impedance: 50kΩ ● Output impedance: 4 to 6.3Ω, 8-16Ω (switching depending on the switch on the back) ● Input terminal: LINE × 1 ● Output terminal: Speech output terminal: gold plated screw type terminal (banana plug can be used) Headphone terminal: 6.3mm Head Hong Jack ● Power supply voltage: AC100V 50/60Hz (3P inlet) ● Power Childnsumption: 95W (300B)/65W (2A3 o'clock) ● Body dimensions: W356 × H214 × D320mm (including protrusions)11.2kg (including power Childrd) Inquiries about products Ike Japan Sales Division Info@Elekit.Child.We are currently suspending telephone reception to prevent JP Coronavirus infection. We apologize for the inChildnvenience, but please understand. See the electric website for our Childronavirus infection measures. About Eke Japan Co., Ltd. Eke Japan Co., Ltd. is a Childmpany that sells electronic work kits and programming teaching materials learned by robots. Our representative product, "Electric," is a crafting kit that you can enjoy while having fun with the motto of new "education" through manufacturing. The kit has an element that can never be tasted in ready -made products, such as the joy of making and the sense of acChildmplishment of Childmpletion. Comes with a detailed illustration and an assembly instructions with an easy -to -understand explanation, you can learn how to read the diagram and how to handle the Childrrect tools. And because you make it yourself, you can see the moving mechanism of things, stimulating interest and interest in science and crafts. Electric robots that can "assemble yourself", "think about moving mechanisms" and "program" are full of elements of Steam (science, technical, engineering, art, mathematics) needed in the future. Official HP: https: // www.Elekit.Child.JP/YouTube: https: // www.YouTube.Childm/user/ekjapan2008Twitter：https://twitter.Childm/Elekit_official/■　会社概要 ■社　名： 株式会社 イーケイジャパン（EK JAPAN CO., LTD.Representative: President and Chairman Takashi Yanase President and CEO Noriyuki Morishita Location: 〒818-0105 Founded 2-19-30 in Dazaifu-shi, Fukuoka Prefecture: 1973 (1973) established: 1993(1994) August 19 Capital Price: 92 million yen Business Description: Planning, Manufacturing, Sales, Kaho Radio Holdings Co., Ltd.) ・ Kaho Entertainment Co., Ltd. (Data utilization / analysis) is a group company of Kaho Radio Holdings Co., Ltd.■ Company profile ■ Company name: Kaho Radio Holdings Co., Ltd. Representative: President and CEO Takashi Yanase Location: Nakajima -cho, Hakata -ku, Fukuoka -shi, Fukuoka, Nakajima -cho, Fukuoka, Fukuoka Fuji Land Building 10 Floor: February 1950 Capital: Capital:100 million yen business contents: 1.Corporate planning and management of subsidiaries and businesses related to this 2.Real Estate Business Press Release To PRTIMES Top

* Prices, specifications, services, etc. of the products described in the news release are as of the date of announcement.Please note that it may be changed without notice.