[Amps] Sweep tube conversion question

[Tom Barber]

Hello all,

I plan to convert an SBE SB2-LA which has 6 - 6je6 sweep tubes.  I would
like to convert to a different tube that would be either more available or
more rugged.  Do any of you more experienced amp builders know of a suitable
tube that will interchange without having to replace the plate transformer?

Tom - KK7PX
"May All Your Signals Be Rare DX"