The table below indicates the numbers of migrating hawks from NOV.10 to NOV.16., and in BRACKETS is the TOTAL SINCE AUG.21. > > TURKEY VULTURE - - (2352) > OSPREY - - (123) > BALD EAGLE - - (47) > NORTHERN HARRIER 1 (258) > SHARP-SHINNED HAWK 11 (1961) > COOPER'S HAWK

. > A coin toss can yield face or tail. If the coin is perfect, the > distribution will be uniform. If a face is 1 and a tail is -1, we can add > successive tosses and track the total number. Even is the distribution of > tosses is uniform, the sum will walk away from 0 (random walk),cameback to 0 > and then move away from 0 again.

> > > Hi Mathias, > > > I'm assuming you're using a coin cell for back up, so wondering if one > of > > > the diodes shouldn't be in series with the battery, with both cathodes > to > > > V_BCKP?

Uses a 6 cell NiMH coin cell pack built into a piece of PVC pipe. > One place wanted $600 for the replacement! Since the unit only draws 11 > ma while you hold the test button, I replaced it with a 9V smoke alarm > battery / diode to block charging.

. > will try to keep that in mind :D > > You have the basic shape of the coin being a torus unioned with a > cylinder, with a sphere subtracted.

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List,   I have seen on the net a 10 MHz filter using 10.7 IFtransformers but have no idea how well they would work for isolation with thenew style Lucent boxes.   Thoughts?   On Ebay venders are offering 10 MHz crystals for almostnothing if you buy 30.  My question wouldthese be good for making some type of simple ladder filter?  

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There was an interesting paper given at FCS about 10 years ago about the quartz shortage during WWII. There were govt projects to search for a replacement material. It sounded like a good effort was made, but in the end nothing else even came close to quartz.