Tube Preamplifier Fever Hifi 6J5 Bile Vacuum Tube Preamp Pre Amplifier Tone Control Board

1. Using 6J5 tube, NE55322. The main filter capacitor uses the 470UF/25V, and the coupling capacitor uses the imported capacitor 1UF.3. The resistor uses high-precision chip resistor to ensure a good signal-to-noise ratio of the whole machine.4. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensures the good passing performance of large and small currents. First-class PCB quality.5. The input and output are made of gold-plated seat, which is and beautiful.The board layout is reasonable, beautiful, and the current is small.Power: DC12V2AColour:Photo ColorMaterial:ABSSize: 133x89x22MM (without tube height)Package Contents:1 x Tube PreamplifierOnly the above package content, other products are not included.Note: Light shooting 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.Chip protection, overvoltage undervoltage overheat DC short circuit detection.

• 1. Using 6J5 tube, NE5532
• 2. The main filter capacitor uses the 470UF/25V, and the coupling capacitor uses the imported capacitor 1UF.
• 3. The resistor uses high-precision chip resistor to ensure a good signal-to-noise ratio of the whole machine.
• 4. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensures the good passing performance of large and small currents. First-class PCB quality.
• 5. The input and output are made of gold-plated seat, which is and beautiful.
• In the event of an overload, the device reports the fault to the processor, thus avoiding damage to itself.