[Elecraft] KX3 - New 100 watt amp

Edward R. Cole kl7uw at acsalaska.net
Fri May 20 13:16:35 EDT 2011


I would probably be interested in this since I bought the K3/10 
except that I have already bought an EB-27 kit for a 18w/300w PA from CCI.
http://www.communication-concepts.com/appnotes/EB27A300Sharp.pdf

With 12w drive it will likely only reach 200w output, but my K3/10 
has 16w output up to 15m; 8w 10/6m.  I will try driving the EB-27 
with the barefoot K3/10 to start with, but am looking at getting the 
TAPR Pennywhistle amplifier kit 20w HF/6m.  It will only require 
about 1w from the K3 on all frequencies.  Will I save anything over a 
KPA-100?  Maybe not.  Wonder how the new 100w amp will be priced 
compared to the KPA-100?

For those that are curious:  The EB-27 cost me $127; transistors 
$105; misc parts $150.  The Pennywhistle is $77+shipping.  Total approx. $400.

I already bought a used Mirage A-1015G 10w/150w 6m amp.  So I will 
have 300w HF and 150w 6m vs. 100w HF/6m.  Kind of a poor-man's 
KPA-500.  OK, not really comparable.


73, Ed - KL7UW, WD2XSH/45
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