> Jon wrote.
>
>> I would say if 60 nH is accurate, that could have quite an effect on the
>> overall supressor design. The reason is that the supressor coil itself
>> is in the 60 to 100 nH range. So in effect you have 2 inductors paralled
>> which (for 2 60 nH Ls in parallel with no resistance in either L) would
>> give a total inductance of only 30 nH.
>>
>This 60 nH is the series-inductance (Ls) of the resistor, not the
>parallel-inductance (Lp). You need to calculate the (frequency
>dependent) parallel equivalent first before you start paralleling the
>two inductors.
>
indeed, Gerard. And if the magnetic fields from the two, paralleled
inductances are coupled, the problem get even stickier -- for instance,
if the inductance of each section in a bifilar filament choke is 10uH,
the paralleled inductance is c. 10uH. [sic]
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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