The newly designed high-power biliary machine power supply, input:100-265V. Output: Filament 6.3V5A, high voltage 300V, current 300MA (actual filament design is 8A, high voltage design is 350MA, leaving more margin). The power supply is 10.3 centimeters long, 6.6 centimeters wide, and 3.5 centimeters high. The filament and high voltage are of each other. Suitable for medium power single ended devices such as -7, 6P3P, EL34, etc. 6P1, 6P14, 6V6, 6P6P, 6L6 and other low-power push-pull machines are used, and other low-power single end machines are not a problem. Powerful bass, transparent midrange, beautiful high notes, and ultra-low background noise. High power, good performance, reasonable price, no false power, power supply with overcurrent, overvoltage, short circuit protection, safe to use. Notes: 1. The power supply has increased, and the heat dissipation needs to be correspondingly increased. 150W requires a very large casing, which creates a contradiction between heat dissipation and casing volume. Actually, it's easy to solve. Generally, the chassis of a gallbladder machine is made of metal, and this power supply design is relatively compact. When installed, it should be tightly attached to the machine casing and assisted by the chassis for heat dissipation. If the power consumption exceeds 80W, it is necessary to strengthen heat dissipation. The chassis should be well ventilated and not placed in very small sealed shells. 2. The high voltage of the power supply comes with built-in rectification and filtering. Burners do not need to add additional filtering capacitors when using it. If the old machine is modified, the filtering capacitors and inductors of the old machine can be removed Colour:As Shown Material:Stainless steel Package Contents: 1 * tube preamp switch power supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.