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

manualman at juno.com manualman at juno.com
Sun Aug 30 01:38:50 EDT 2020


According to the Riders drawing, it's a 330 ohm plug-in ballest.
Pete

On Sun, 30 Aug 2020 01:21:10 -0400 <manualman at juno.com> writes:
> 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



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