Introduction: The Western Electric 205D tube, replicated by Psvane using a 4.5V heater, delivers vintage warmth and clarity, maximizing Hi-Fi seem with vintage style and modern-day trustworthiness.
lots of audiophiles https://youdaelectronics.com/blog/understanding-the-role-of-western-electric-205d-style-tubes-in-hi-fi-systems_b0069.html