Mini HIFI 6J1 Vacuum Tube Stereo Audio Preamplifier Buffer Pre-Aluminum Alloy with Power Adapter Gadgets Support TF card: Yes

Support TF card: Yes

Impedance: 50¦¸

1M ohm Features DIY resistor kit D Application Great for Arduino test develop DIY project English Manual/Spec Yes (electronic format) Other A product for Arduino that works with official Arduino boards

Phase of the Moon

Mini HIFI 6J1 Vacuum Tube Stereo Audio Preamplifier Buffer Pre-Aluminum Alloy with Power Adapter Gadgets Support TF card: YesFeatures: Mini pre amplifier for connecting computer, smart phone, music player to digital power amplifier, active audio devices etc. It makes your audio devices full of pure and HiFi sound, with excellent performance. All aluminum alloy shell with compact size, great durable quality and exquisite appearance. Adopts 6J1 vacuum tubes, removable tube design for convenient replacement and upgrade. Gold plated RCA input(L & R) and output (L & R) jacks for