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

2015-03-27 Thread Don Wilhelm
Brian, If the toroid cores have a painted color on them, they are *not* ferrite cores. The ferrite cores are a dull gray. The more common ferrite cores are type 43 Mix, but could also be a 61 mix. The 61 mix is a lighter shade of grey than the 43 mix. For reference, the tiny cores used for

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

2015-03-26 Thread Don Wilhelm
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

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

2015-03-26 Thread 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,

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

2015-03-25 Thread Kenneth Talbott
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