Testing Tubes at SkyFi on our Professional + Modern Amplitrex AT1000 HD

More on this piece of test equipment from the official Amplitrex website: • Tests hundreds of popular audio, guitar amp, organ and radio tubes • Optimized to precisely test audiophile-grade tubes • Tests tubes at real-world power levels, up to 500V @ 160mA • Direct digital readout of true Mutual Conductance using a 1 kHz AC signal • Measures Heater-to-Cathode Leakage, Emission and Gas • Emission and GM results in percent-of-spec, and actual mA, mA/V, etc. • Listen to tubes for microphonics with the built-in headphone amplifier • Tests multi-section tubes, diodes, rectifiers and electron ray indicators • Fully regulated power supplies – no mains/line compensation needed • Fully protected against overload, shorts and overheating • Routine calibration is not required • Heater/filament power from 1.0 to 12.6V, up to 3.5A • User-programmable tube test data, stored in EEPROM • Processor-controlled tube pin selection. No switches, no rewiring. • Available for worldwide operation at 115 or 230V, 50/60 Hz (nominal) • Portable, compact carrying case, 18.5 lbs (8.4 kg) net wt. • Rugged, industrial-quality construction • Connects to a Personal Computer using a standard USB port • Free TubeTest© Computer Test and Curve Plot Software included • Print test data with optional Brother P-touch Label Printer • Free Tubedata Editor software, to modify test parameters and add tubes • Software requires a PC computer running Windows XP, Win7, Win8, Win10 • Designed and manufactured in the USA WHO WE ARE SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of select high end audio equipment. We only buy equipment that we admire and are passionate about. No mid-fi, no gimmicks, and no junk. Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units. SkyFi Audio Store: https://www.skyfiaudio.com SkyFi Audio News: https://skyfiaudio.com/blogs/news SkyFi Audio on Instagram: https://www.instagram.com/skyfiaudio SkyFi Audio Newsletter: https://bit.ly/skyfinewslettersignup Subscribe to SkyFi Audio on YouTube: https://bit.ly/subscribe-skyfi-youtube To inquire about new products please visit our friends at Stereo Exchange in New York City: http://stereoexchange.com SkyFi Audio on Facebook: https://www.facebook.com/skyfiaudio