NTS-2 appreciation post! The NTS-2 is an oscilloscope, tuner, FFT, and spectrum analyzer that is accurate, intuitive, and incredibly useful. By using its dual stereo IN, dual stereo THRU/OUT, and two separate OUTPUTs, you can wire it into your synth rig and use its dual waveform generators to give yourself an extra pair of oscillators or LFOs! The new NTS-2 multi-function 4-channel oscilloscope Patch & Tweak book bundle is a great tool for learning, testing, and visualizing synths and the waves

Collin's Lab: Oscilloscope Basics -... - Adafruit Industries