Here is your opportunity to own a brand new, custom built (by Tube Audio Lab) 1626 Darling single ended triode (SET) stereo amplifier. The amplifier has solid state rectification on B+ and heater voltages for a hum/noise free operation. The circuit is capable of 0.75 RMS watts per channel. However, the amplifier sounds as loud as my 2A3 stereo amplifier with on Altec Valencia speakers (100 dB/W/m). This Darling has a unique feature that allows for switching between power amp and h...eadphone modes. It will work best for headphones with a lower impedance, i.e. less than 100 ohms, but it sounds fine with higher impedance. It also has volume control so that you can hook up a source without signal attenuation. If you are not familiar with the 1626 Darling circuit, please google it. There is plenty of information out there on this circuit. Also, you can google "Tube Audio Lab" and this amp is featured on my website. If you have any questions, please let me know and I will do my best answer. Please note that the small figurine, aka "the Jazzman", is not included in the auction. No international shipping except to Canada.On Dec-13-20 at 18:35:16 PST, seller added the following information:Tube complement: 1x 12SL7 (preamp tube) and 2x 1626s (output tubes)