I have two DeTeWe type EV triodes in my personal radiotube collection. One is new, and the other one seems was used.
I am going to sell them and am looking for a wealthy buyer for these rarest radiotubes. Ready to sell these radio tubes out of auction, together or one at a time. If I do not find a buyer, put them up for auction.
Ready to consider price offers by e-mail.
PS I could not attach photos here, I can send them by e-mail on request.
Upon request, I check for vacuum and performance. and measure parameters of each radiotube