Love my little amp, i did all the popular mods, input cap, coupling caps, cathode caps, transformer heatsink and changed that terribly bright blue power led to amber. Nobsound 6p1 is great
Nobsound 6P1 6.8W x 2 Vacuum Tube Power Amplifier; Stereo Class A Single-Ended Audio Amp Handcrafted : Amazon.ca: Electronics
Nobsound Mini Vacuum Tube Headphone Amplifier Best HiFi Stereo Preamp Audio Amp 843355441094 | eBay
Nobsound® MS-10D Hybird Tube Amplifier Power Amplifier Excellent Sound for HiFi 110v : Amazon.ca: Electronics