I found this on mods.dk
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The 706MKIIG radio has 2 different versions of the PA
board. The older PA board's finals (1590002690)aka
(srfj7044) are no longer available and would require
replacement of the PA board. The newer style PA board
transistors are part# 1560001190 (rd70HVF) and can be
ordered by The 2 styles of transistors are not
interchangeable.
The complete PA board is part# 98413600 and sells for
apx $442. The catch 22 is that this board is the old
style board, with the old transistors. We do not have
the new style boards available yet so, if the finals
fail again, it's another board replacement.
Kevin McClinton, W7JRL
Technical Support Representative
ICOM America, Inc.
2380 116th Ave. NE
Bellevue, WA 98004
Ph. (425) 454-7619
Fax (425) 637-8417
www.icomamerica.com---------Snip--------