PC: Lenovo ThinkCentre M81. Intel i5-2400 3.10GHz 4.00Gb RAM WIN10

Audio interface: Focusrite Scarlett 2i2 3rd Gen

Softwares: RightMark Audio Analyzer, ARTA, REW5, Soundcard Scope, PicoScope 6

DIY testbench: Focusrite Scarlett 2i2, PicoScope 2206B, Dummyload 4/8ohm/100W

Equipment: FLUKE 199C Scopemeter.  HAMEG HM203-6 analog oscilloscope.  Instrustar ISDS205A 2CH, 20MHz 48MSa/s FFT USB oscilloscope. Owon XDS2102A 2CH, 100MHz, 1Gs/s (VGA) oscilloscope. uTracer3+ tube curve tracer (http://www.valveaudio.fi/452078750).

LEADER LG1301 function generator. Fluke 115 true rms multimeter.

Tube tester: http://www.valveheaven.com/2015/03/an-inexpensive-easy-to-build-diy-valvetube-tester/