[R-390] Ballast Tubes

[Forrest Myers]

Hello All,
 Came into the shack and found my r-390a dead. A quick check found the
ballast tube was shot. I've seen a lot going by on ballast tubes these past
few days but am interested in getting a real ballast tube, if I can afford
it, back into the radio.
 Anyone have a source for a 3TF7?
 If I must, I'll put in a mod to get around the 3TF7 but would rather not.

Thanks,
Forrest Myers
AG4ND

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