5763 Tetrode - what do you think?

[Diablo]

I've got a stash of NOS 5763 tubes and see that they're pretty inexpensive if you try to buy 'em online from various tube dealers. Do you think it's worth trying to use in a guitar amp build as sort of a low powered EL84 substitute? Anyone with any experience using this tube for audio? I've attached a Brimar tube data sheet link on this tube for reference.

http://tubedata.itchurch.org/sheets/184/5/5763.pdf