[Elecraft] More power for K2

Don Wilhelm w3fpr at earthlink.net
Fri Apr 14 23:56:35 EDT 2006


George,

I don't have a manual or a schematic, but I would think that is a regulated
supply - if so, changing the transformer taps will only change the bulk
voltage but should not change the output.

There may (or may not) be a pot in the regulator circuit that would change
the output voltage.

73,
Don W3FPR

> -----Original Message-----
>
> I came into a cheap old Yaesu FP 107E power supply which works
> fine, except for somewhat low voltage output.  I notice the
> transformer has several taps, but I'm afraid to mess with it,
> since I have no manual.
>
> I would be beholden to anyone who has a manual for this unit, and
> would be so kind as to send info on how to change the taps for
> higher voltage.  Also, a copy of the schematic would be nice.
>
> Many thanks, George, N4YM
>



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