DAC / Audio Decoder. Digital Interface / Sound Card. AV Tube Integrated Amplifier. PSU / Power Supply. Audio HiFi & DIY. Tube Amplifier DIY Kit. 3.5 Line Out Cable. Retro Nixie Clock Inspired Modern Digital Gixie Clock 6-digit LED Shelf Clock. Warm tips: limited to reasons such as photo technique, light, and white backgrounds, the real color of the LED clock hasn’t been displayed completely. The real clock looks much better than the picture shows….