[Elecraft] KPA100 Parasitic on 40m

[Jonathan Taylor, K1RFD]

I had originally posted a question about this problem back in 2006 and I 
am re-posting it because the problem persists, and I'm wondering if 
there might be an updated suggested fix.

The issue is that my K2/100 #2462 is frequently unusable on 40m at high 
power.  When going into TUNE, it often blows the fuse.  This happens 
with or without the KAT100 connected at various times, and with various 
loads, including a dummy load.  The conclusion from earlier discussions 
is that this was probably a parasitic oscillation in the PA.  I have 
tried N0SS's suggestion of shifting the position of RFC10, without 
success.  I have the Rev B KPA100 board.

Thanks