Quote Originally Posted by Donald Qualls
That adapter is redundant on a Spottie, though.
I'm not absolutely sure, but I think that may apply to only the Spot-F which uses a nulling bridge. The Spot II requires 3ua through the galvanometer to center it. I think the other non-F Spotties are the same. Won't the meter current for given potentiometer and photocell values increase with the battery voltage?