[R-390] RE 3TF7

[Richard M. MC Clung]

The balast failures that I observed During 21 years of military
service:
  R-390 and R-390A Failures:
    Mobile: 4 that I can remember.
    Transportable: 3 
    Fixed Station: None.
  R-392 Failures:
    Mobile: 6 that I can remember.
    and one R-392 of my collection while using the RCVR.
RICH  WA6KNW