Erhard Audio uses Lundahl Output Transformers in their designs
We are happy to note that Erhard Audio (formerly Tube Nirvana) has auditioned Lundahl amplifier output transformers in their models and, as a result, are using Lundahl output transformers now in production. You can read their take on these and other parts decisions here: www.erhard-audio.com/Blog.html and see power the amplifiers here:
www.erhard-audio.com/Elvis.html
www.erhard-audio.com/Buddy.html
and a headphone amplifier:
www.erhard-audio.com/Billie.html
And while you’re at it, look at the chassis artistry, as well!