Had a short between pins 7 & 8, so I cracked it open to take a looksee.

Resistant coil wire wrapped around a mica board. white stuff seem like
plaster for glue.

I suppose I could stuff it with an 180 ohm wireround 25 watt ( 3 & 8 ),
45 ohm 5 watt ( 7 & 8 ). Any tips?
Tho, I did place an order for 3 NOS tubes.
_JD_