[R-390] R-390A ballast replacement

[charles bolland]

Hi all,

Yesterday I went to the archieves and found a circuit diagram for a ballast
replacement by K0CQ.
It has as it's main componenet the  LM317T.  I was wondering if anyone build
this circuit and if so, are they still using it in place of a ballast tube?
Is it an improvement as stated in the building instructions?   Other
comments?

Thanks

Chuck
KA4PRF
ka4prfnospam at peoplepc.com