[Elecraft] Internal vs. External (230 and experiments)

dw bw_dw at fastmail.fm
Fri Feb 26 16:47:24 EST 2010


Hi David,
To my knowledge, the only way I could check the L/C on it would be to
tune with the unit cover off and then disconnect input/ouput and measure
both L & C.

Otherwise it is just a go/no-go test.

I did build an L-network station that I use for manual testing.
For the inductor, I used a 6" long ferret core, wrapped unshielded wire
around it with spacing sufficient for a micro-jumper-clip. 
Then I pre-measured the inductance for each clip-point and marked it on
the side.
I also have a big-ol L network with a 14uH roller inductor in a metal
box which I haven't used for years.

I'd love to get rid of it....(shameless advertisement)
N1BBR

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When you are doing your experiments, what does the SG tell you?  I mean,
is 
there a way of determining the matching condition L and C ?  Or is it a
go, 
no-go test?

David
G3UNA 
-- 
 Bw_dw at fastmail.net



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