[R-390] R-390 Problems Update

[David C. Hallam]

Thanks to all who replied to my request for help.  The problem turned out to
be a failed ballast tube. I changed the VFO and BFO tubes to 12BA6's and
stuck the paper clip jumper in the ballast tube socket.  All is working well
again.

I don't know if the failure of one of the 26Z5W rectifier tubes precipitated
the failure of the ballast tube or if they were two unrelated malfunctions.
The rectifiers were replaced with a pair of Ted Weber's copper top silicon
plug in's.

David C. Hallam
KC2JD