Hi Stefan et. al.,

Stefan, you might wish to direct some of this discussion towards Alan
g3nyk. Some years ago while working together on some commercial
applications he and I had very interesting ideas about using optical
links in both commercial and amateur transmitter designs for the purpose
of simplifying unwanted coupling between various stages including the
matching problems that may sometimes arise. Opto-isolation is also quite
useful in the practice of isolating direct galvanic coupling. Alan, I
recall had some quite novel and interesting ideas (as he often has) and
would be worth drawing into the discussion if you can prise him away
from his other pretty consuming interests.

Rgds


-- 
73 es gd dx de pat g4gvw
 qth nr felixstowe uk
(east coast, county of suffolk)