[Elecraft] KPA100 Page 43 test results
David A. Belsley
[email protected]
Tue Sep 10 21:48:00 2002
Rick:
I don't know about the .1v on J3, but, if I remember correctly, I got a
reading very much like the -26.5 vdc on U4. It's within 10% of spec. so I
just went ahead. Everything is working fine.
best wishes,
dave belsley, w1euy
--On Tuesday, September 10, 2002 4:16 PM -0700 Rick Wheeler
<[email protected]> wrote:
> I am currently building the KPA100 for my K2 ser no. 2005. Two of the
> four test results on page 43 are slightly out of range. D13 cathode is
> 122 VDC: OK. U4 pin 8 is -26.5 VDC: range is -5 to -25. TP1 is 0 VDC:
> OK. And J3 + lead is .1 VDC: range is 0 only.
>
> What could cause U4 and J3 to be out of spec? I know these are only
> slightly out of spec but "numbers is numbers". Power supply voltage to
> the K2 is 14.1 VDC (as measured from the same DMM). The fan did go on
> and stay on if that means anything.
>
> Thanks,
>
> Rick Wheeler
> K4LX
> K2 No. 2005 all the options...
>
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----------------------------------
David A. Belsley
Professor of Economics