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Tasks Accomplished Jan31

I did the following yesterday:

	built some more amp./filter stages & tested sensor circuit
	found that the range is really small & the angle of detection is
really narrow
	try to improve sensor range with min success

	will ponder more on sensors in the next few days
		(I might have come up w/ a scheme to use transistors as
switches for the sensors -- this should lower the cost of the circuit &
make the timing easier for tim; I'll try simulating it on PSpice.)

Joyce :)