1PCS New Shuguang 274B Replace 5AR4 5U4G 5Z3PAT Amplifier HIFI Audio Vacuum Tube
Dawn in the production of 274 b is a high-performance rectifier tube, the use of special cathodic electrodeposition process, the surface is smooth and firm and have plenty of emission current, ultra-high vacuum exhaust machine is adopted to carry out long exhaust tube vacuum degree, more than 100 times higher than 5 u4g adopted high voltage long smelting method at the same time, improve the stability of the whole pipe. The reverse peak voltage of the tube can reach more than 850V, and its output DC current is as high as 150MA. It will not spark when working in the high voltage state. It is an ideal rectifier tube and can be used as an rectifier.
Please note that the pipe coming off the production line this time is an improved pipe, which is mainly improved in the aspects of process, glass shell size and elimination of lighting and so on.
Package Included
274B Tube X1
Shipping & After Sales Service
1.Normal products can be sent out in 3-7 days after paid;
2.Shipping ways
a. Expedited Shipping: DHL, UPS, or FedEx. For faster shipping or smoothly transaction, we will change the best shipping company among them.
Estimated Delivery Time: 3-7 Days
b. Standard Shipping: EMS, ePacket(U.S available only) or DHL Global Mail (Gemany available only)
Estimated Delivery Time: 5-15 Days.
c. Economy Shipping: China Post or HongKong Post Air Mail
Estimated Delivery Time:15-34 Days
NOTE:All shippments to Brazil and Russia may take about 35-70 days
3.We will prodvide tracking number in 3 days after shipment;
4.When you have any questions about our products please contact us through Aliexpress, we will reply in 24 hours.