13d16 vacuum tubes ?

[airdronian]

Been reading lately on the new EAR Phonobox - the successor to the 834P. Apparently it comes stock with 13d16 tubes, with a switch option in the power supply to allow ecc83. That last detail is from a forum, so not sure if accurate.

I'm familiar with 13d5, I have a pair of Brimars which were sold as a sub for 12au7 . The searches I've run don't locate any 13d16 for sale, nor a datasheet.

Anyone familiar with this tube ? Or is it a re-labelled ecc83/12ax7 ? Nudie shot of the new Phonobox:

 

[paul_b]

I would be nearly 100% certain that it's a relabeled tube, though it looks like something that's custom made for them.

A phono preamp is not a place where it's easy to just throw a switch and use a completely different kind of tube, so electrically it would need to be the same as a 12AX7, but there could be something like a shield added instead of the heater center tap.

 

[EL3010]

6n2p - EB ???
Kind regards , Alexander .