[Elecraft] KPA100 and KAT100 in EC2 - is replacement of L1 on AUX2 necessary?

[Brian Denley]

Ken and Don:
I am interested in this as well.  My KAT100 is complete in the EC-2 and I just started the KPA100 build today.  I'm sure I have a few spare toroid cores around here.  How do I tell if they are the ones specified by Don?

Brian 
KB1VBF
Sent from my iPad

> On Mar 26, 2015, at 7:57 AM, Don Wilhelm <w3fpr at embarqmail.com> wrote:
> 
> Ken,
> 
> Although *supposedly* the inductor should be able to supply the needed current, I recommend replacing it with a toroid.
> Especially if the inductor is of the older miniature type.
> 12 turns on a FT25-43 or FT37-43 core will work nicely.
> 
> 73,
> Don W3FPR
> 
>> On 3/26/2015 1:41 AM, Kenneth Talbott wrote:
>> I just completed moving my KPA100 and KAT100 into the EC2 enclosure.  I am
>> really pleased with the result!  Spring is here!  All I have to do is
>> disconnect 2 cables from my K2/10 with KAT2 and hook up the camper for QRP
>> fun in the woods of Virginia.  Can someone advise me whether or not it is
>> necessary to replace L1 (the 15-mH inductor on AUX2 board)?  Some posts
>> suggest that its current capacity is inadequate to power the digital
>> subsystem of the KPA100/KAT100.  I do provide DC power to the K2/10 and
>> KAT100 through their coaxial DC connectors.  Thanks!
>> 
>> Ken - ke4rg
>> 
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