chrisdrop
1000+ Head-Fier
Here are some of the tubes I purchased last night on my 6J5 shoppping spree - early Fivre black plate 6J5GT. Have been watching this pair for a long time.
1937 Zenith (Sylvania) 6J5G, similar to @mordy 's 6C5G above, inspired me to pull the trigger. Plates are the same smooth black round plates in my Sylvania VT-94D metal base.
My own pair of Ken-Rad 6J5GT, the lead-bellies.
Been meaning to get a pair of these for a long time, they are an essential but dragged my feet since they show up quite often. STC/Brimar 6J5G, early black plate pair. I overpayed for these, passed on the opportunity for a quad for the same price in the past, but they are immaculate and in original boxes, so what the heck.
More to come
You probably already have scoured the web, but in case of use - the guys @ Billington seem to have a quantity of 6J5s https://web211.secure-secure.co.uk/tube-and-valve-electronics.co.uk/downloads/Cat Oct 2019 v1.pdf
If you email them they are good about letting you know exactly what they have on the shelf.