[Boatanchors] Ballast tube for Hallicrafters S-47 (Nytron 24B870) - data needed

[manualman at juno.com]

Sure it's not Hytron??

Pete, wa2cwa
www.manualman.com

On Sat, 29 Aug 2020 23:11:35 -0500 Bob Groh <bob.groh at gmail.com> writes:
> Trying to find a data sheet or some data on a Nytron 24B870-0 
> ballast
> tube.  It is used on the Hallicrafters S-47 receiver (and possibly 
> others)
> as part of the B+ filtering. Tried extensive web searching with no 
> luck so
> far. Any leads or data would be appreciated.  Thanks.
> 
> Bob Groh, WA2CKY