I have been butchering a Heath SB220 to get it on 6. Input VSWR is ~2:1 and
can't seem to improve that. Rich mentions a problem with the relay causing
reactance. The bypass measurement is the same so I will get out the board
burner and add the cap he speaks of.
The tank circuit is where I am perplexed! Tune cap is adjusted for minimum
to get max power out. I am seeing ~ 500 watts with 100 watts drive. I have
tried removing plates from the tune cap and get identical results. This
seems to indicate that I still have too much cap in the tune side of the
output network. Right / Wrong?
Suggestions to get more smoke out of these bottles? I thought I should see
about 8-900 out.....
73 from NS1Z, FN44rn
John Wilcox
871 Route 120
Rumford, ME 04276-3836
fon: 207-364-2246
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