[Elecraft] K2 Checkout - Excess current?

W3FPR - Don Wilhelm w3fpr at earthlink.net
Wed Jan 19 09:52:08 EST 2005


Gordon,

2.2 Amps is probably OK - it is only 10% above the nominal, and that is 
within the range of acceptable tolerance for an assembly of 5% tolerance 
parts.
The power output measurement may be off a bit (especially if you are using 
an external wattmeter), and if your output is really 11 watts instead of 10, 
that would readily explain the increased current.
How accurate is your dummy load? - if it is not exactly 50 ohms resistive at 
the frequency you are using, the K2 power ouput indication will not be 
correct - but OTOH, if the dummy load IS an accurate 50 ohms resistive, the 
base K2 RF probe type detector is usually more accurate than an external 
wattmeter.

73,
Don W3FPR

----- Original Message ----- 

I am almost done assembling #3108.  During the 40 meter Transmitter
Alignment (page 72) the radio is drawing 2.2 amps for 10w power.  The manual
says "much higher than 2 A" is a problem.  Is 2.2 a problem?





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