Mullard Vacuum ECC83 12AX7 Upgrade ECC803 6N4 B759 ECC83S CV4004 E83CC Válvula de áudio HIFI Amplificador eletrônico de válvulas combinadas Quad

Description Report Item Thank you very much for visiting Aoyue Electronic Tube Specialty Store Wishing you a pleasant shopping experience Brand new Aogutx Mullard 12AX7 ECC83 Vacuum Tube HIFI Audio Valve Replaces 6N4 Electronic Tube Amplifier Kit Diy Genuine Factory Precision Matched Quad In a series of retro famous tube plans, NEW SENSOR Group of the United States, of course, also locked in this dream Mullard famous tube. After obtaining the same manufacturing process and design as the original product line, the company moved to St. Petersburg, Russia, and successfully reproduced Mullard EL34, 12AX7, EL84 and other classic famous pipes with local high-quality engineering manpower and advanced old OTK technical support. All new reproductions adhere to the requirements of showing the characteristics of the old tube in the original. The vacuum treatment and internal metal materials, as well as the material and thickness of the glass bottle body, and even the solder proportion of the foot, are carried out according to the technical manual of the original tube. The new century's factory management and more rigorous testing also make the reproduction more reliable and complete. Even the packaging is completely in accordance with the printing, and the texture is very good. Sound quality is the most concerned topic of enthusiasts. After verification of electrical characteristics and durability by the original manufacturer, compared with the old pipe, the original strength and sound thickness are not bad at all, while the new pipe even has a very extended high frequency, full of air, compared with the old pipe. The shop promises: The electronic tubes operated by our store are guaranteed to be brand new and high-quality genuine products from the original factory, and we will provide free replacements for any quality problems within one year. All tubes are rigorously tested to match .Buy 2pcs = Precision matched pair. Buy 4pcs = Precision Matched Quad. We have the conditions and advantages to match multiple tubes (four tubes, eight tubes) according to customer needs. The same parameters. It is a professional shockproof and firm package. It is absolutely safe.