[R-390] Best approach for SSB mod on R-390A

[djed1 at aol.com]

Compared to buying a tube SSB adapter these days, the two diode approach  
will make the radio work pretty well on SSB.  I used to just run mine on  
medium AGC, and that was OK.  The two diodes made it better, but I  eventually 
removed them because they affected the meter readings, and I got a  R4C for 
my SSB work.
Since then I've built a solid-state SSB adapter that works well ( product  
detector and fast-attack AVC), so I occasionally use the R-390A to monitor  
the ham bands. AI2Q published a version of the adapter if you want to give 
it a  try.
Ed  W2EMN