Part 4/8:
The focus then shifts to vintage vacuum tubes, which are portrayed as the "real stuff" for enthusiast or collector. The speaker describes powering up these tubes carefully, metaphorically "sitting them by the patient on the ventilator" — a poetic way of illustrating the meticulous process of bringing old components back to life. They slowly increase voltage, around 80 volts, observing the tubes' response with anticipation.