[Elecraft] KPA 100 L15

[Don Wilhelm]

Jim,

Sorry about the confusion I caused.  I meant to say L16 but my finger 
slipped.  Yes, the board built from the Rev D manual will have no 
component at L15 (and R12 and C82).

You will not have voltage at D13 unless you have connected a power 
supply to the KPA100.

73,
Don W3FPR

Soaring Eagles wrote:
> OK, now I'm confused. I'm currently building the KPA 100. I've just 
> finished soldering the finals. I currently have a blank space at L15. I 
> checked the schematics in my manual (Rev D, 9/25/06) and it shows that 
> L15 is not used. I also don't have any toroids left, and I wrote in all 
> the errata that came with the box when I got it (Jan, 2007).
> 
> Am I missing something? (namely a toroid). or an errata? I just checked 
> Elecraft's web site and looked at the schematic for Rev E (I know I 
> don't have it, but for comparison purposes) and it shows that L15 is not 
> used.
> 
> Thanks for any help. Just wanted to clear up my confusion before I got 
> too far.
> 
> Thanks!
> 
> Jim, WD9HBC
> K2 #5757
> KX1 #1517
> 
> 
> .......First question is - do you have a red or a blue toroid core at 
> the L15
> location?  If it is red, you should have the Rev C manual and you will
> have a voltage at the cathode of D13 with no power connected to the KPA100.
> 
> OTOH, if you have a blue toroid core at L15, you should have the Rev D
> manual (be certain to download the latest errata sheet from the Elecraft
> website).  If this is your KPA100 level, then you will not measure any
> voltage on D13 unless the KPA100 power is connected.
> ................
> 
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