[Elecraft] K2/100 whats the min power and what current drain?

[Ron D'Eau Claire]

I don't' see the message here, but Jack, W6FB, e-mailed me off-list that the
parasitic drain continues from the low-current supply as long as the KPA100
is installed. Only the PA transistors get current only from the high-current
connector. That sounds like what you're saying Don. 

I  thought the whole KPA100 was isolated by the diodes when the only power
was coming from the low-current 13 vdc connector on the K2. 

That's the value of posting to the list with everyone watching!  Thanks for
catching my error. 

Ron AC7AC



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Thursday, December 01, 2005 5:22 PM
To: Paul Webb; elecraft at mailman.qth.net
Subject: RE: [Elecraft] K2/100 whats the min power and what current drain?


Paul,

The low power setting remains the same - when the KPA100 is not powered (but
the base K2 is through a separate power supply), the QRP K2 will operate
just the same as if the KPA100 is not attached, but if the KPA100 is powered
on, th K2 power control will increment in steps of 0.5 watts instead of the
0.1 watt steps - up to the 10 watt level - the KPA100 kicks in at 11 watts
and then the increment is in 1 watt steps.

The receive current on my fully loaded K2 is 0.34 Amps with the KPA100
disconnected, increases to  0.44 to 0.46 amps with the KPA100 attached and
not powered, and goes up to 0.50 Amps with the KPA100 powered on.  The
receive current does not vary with the power setting.

73,
Don W3FPR

> -----Original Message-----
>
> I only have a QRP K2 but just would like to know what the min power a 
> K2/100 will run at with the power know turned down ,
>
>  and what current does it draw at low power compared to the barefoot 
> K2?
>
>

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