You may get better - different - results if you use an oscilloscope to measure this voltage peak. The Simpson has ?dampening? qualities and will NOT show the true peak voltage/current.
Also, have you taken into account any internal resistance of the Simpson? As I recall that was a 20,000 ohms per volt (a 50 uA movement) meter - Great at the time, but worthless today for anything other than house/auto wiring - which also implies that there is a shunt dropping the meter movement down from 50 to 60 (???? which model has a range of 60??? I have seen ones with 50 and 100 uA but not 60) and thus there is resistance added to your "test" circuit. These small errors are acting like a furculum and greatly skewing your results. Rich, KE0X
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