[R-390] My 'new' R390

Barry n4buq at knology.net
Sat Aug 16 14:03:17 EDT 2025


Tube Pullers -> Jealous  :-)

Barry - N4BUQ


> The line filter was bad in mine too, so, many years ago, I replaced it with
> a IEC320 with integral filtering.
> It just fits the hole for the original filter, mounted from the inside.
> I cannot remember who provided the two other pictures attached, but one
> displays a R-390 back panel that is still original, the other gives the ID
> for the RF deck tuning slugs.
> To any useful purpose...
> 
> 73, Jacques, VE2JFE in Montreal
> 
> The line filter can go bad. In my case, it lost connection internally and I
> had to rebuild it which it wasn't very easy The box is soldered shut so lots
> of heavy iron needed to get it apart and back together. Hopefully yours is
> still okay.
> 
> Barry - N4BUQ


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