ESR Meter
<UL>
<LI><b>ESRMeterP</b> is an early checkpoint of ESRMeter.</LI>
<LI><b>ESRMeterN</b> is a later checkpoint of ESRMeter.</LI>
<LI><b>ESRMeter</b> is a drawing for an ESR Meter, based on some work I found 
online (but don't remember where).</LI>