As per my post in SEB, I am trying to use a photo resistor and sunlight to
turn off a transistor that would otherwise be conducting like crazy, but
can't quite make the leap of comprehension as to how to actually do this.
Please see attached schematic parts that show more or less what I am trying
to do this with. No part number for the photoresistor, sorry. It drops
from multi-megohms in the dark to single-digit Ohms in the light and seems
perfectly capable of carrying the 30 to 50 mA current I am working with at
the voltages indicated. Would really appreciate it if someone could offer a
hint as to how I should proceed with as few components as possible (small
circuit board.) I hope that my method of posting the schematic portion of
what I a working with is not too obtuse. Couldn't figure out any other way
to do it...

Many thanks...

Dave