Description/Features: Our Upgraded Tube Preamp Switch Power Supply is your perfect choice for enhancing the quality of sound from your device. This amplifier former is easy to use and comes with a modernized design to your satisfaction. With an input voltage of 95-265V, this power supply is specially designed to suit small single end machines such as 6P1, 6P14, 6P15, 6V6, 6P6P, 6L6, and FU32 and other applications. It enables you to achieve the effect of a push-pull machine on devices such as 6P1 and extending their vitality. Features of this power supply include a synchronous rectification technology and delay function, ensuring a delay to avoid tube impact when not hot. The high-voltage output gradually increases from 0V to 280V, maximizing the lifespan of the electronic tube. This former comes with long-life capacitors for better performance. With filtering electrolytic capacitors, expect a service life four times that of ordinary capacitors. It also features a high power and high-frequency former with a copper tape shielding layer, to prevent interference and lower noise, allowing your machine to produce clear high pitched sound and rounded mid pitched sound. To operate effectively, this power supply should be tightly fixed against the chassis for enhanced heat dissipation. Avoid using it in a sealed shell; instead, the chassis is well ventilated. Perfectly, normal usage should be below 60W, and above 60W should have enhanced heat dissipation Specifications: Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Material: Stainless steel colour: As Shown Package Contents: 1 x 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 rea