[Elecraft] kpa100

[Lamb, Dick & Judy]

On Apr 12, 2007, at 5:06 , Ron McMurray wrote:

> bought mine in mar of 05, manual says rev. c.
> what is the benefits of updating it and do i need to.
> ron


I might add to Don's reply that if you decide to build according to  
the Rev E manual, you'll need the following replacement parts:

Part     Quant.     
Item                                                               Ref

E530102   2      Cap.  .0047 mF "472" 100V  .25" LS        C67, C80  
in KPA100

E530033   2      Cap. 1200 pf "6122" 630V polyprop         C2A, C6D

E530262   2      Cap.  .0047 mF "472" 250V .4" LS            C64, C79

E530295   1      Cap.  .22mF "u22J63" 63V .2" LS             C31

E680001   2      Toroidal ind. T50-1 blue .5"                          
L16, RFC1

E500006   1      Resistor, 100k  
1/4W                                     R4

E500090   1      Resistor  22K  
1/4W                                        R40

E690006   2      RF Choke 15uH  BRN-GRN-BLK                RFC4, RFC5

In addition, you might want to purchase replacements for R19 and R20  
if the ones in your kit are blue rather than reddish brown.  See  
Don's email of March 4 regarding R19 and R20.

I had exactly your situation, and just completed assembly of my  
KPA100 with a Rev E manual using a kit of Rev C parts.
I had no problems, and the KPA100 worked perfectly in every respect  
when I first fired it up.

I might add that the great folks at the Elecraft Parts Dept. sent my  
parts on the same day I sent my email order.


Good luck.
Dick, K0KK