[Elecraft] KPA100 low resistance on Q1 / Q2

Don Wilhelm w3fpr at earthlink.net
Tue Mar 20 20:25:15 EST 2007


Hank,

The newest manual calls for greater than 11.2 ohms.  You must be using 
an older manual.  You are just fine with 11.4 ohms.

73,
Don W3FPR

Hank Kryger wrote:
> Hi to the group
> I completed my K2 and now am building the KPA 100.  Manual  Rev C, Feb 
> 2004.
> On page 41, "Alignment and Installation"   Resistance measurements are 
> made between ground and test point.  J3, Q1 Collector, Q2 collector, and 
> Q9 tab are all within the the spec,s as listed in the table.  Q1 base 
> and Q2 base to ground I get lower then expected resistance values.  11.4 
> Ohms.
> Should I be concerned about this reading since the manual calls for 12 - 
> 16 ohms?
> I also had some problems getting a reading at D13 cathode end.  After 
> several tries I did get a reading according to spec,s.
> thanks for any assistance,  73's  Hank WA9QJH


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