[Elecraft] Quiescent current drain K3

David Pratt david at g4dmp.co.uk
Mon Feb 11 10:56:25 EST 2008


ZD8RH de G4DMP
In a recent message, bobatbay at beeb.net wrote ...
>Has anyone measured the current drain on their K3 when it is
>Off ?
>
>I have measured 7mA.
>
>Is this typical ?

The stand-by current of the K3 varies considerably depending on how long 
the power has been disconnected before the measurement is made.

I measured the current of my K3 after the power had been disconnected 
for about six hours and the current was 15mA as measured on a good 
quality moving-coil (d'Arsonval) type of meter. Having used my K3 and 
then switched off, the current was 65mA and then reduced slowly.

I can only assume that the variation is due to internal circuits 
(capacitors, etc) being recharged after the POWER button switches the K3 
off.

73
-- 
David G4DMP/G3KEP
Leeds, UK
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