[Amps] Questions about Amp Supply LK-450

[Keith E. Spainhour]

Hello,
Thanks I will try that on 160.
> Keith -- The problem is probably being caused by the Tune-C and Load-C
> padders on 160m.  The original disk ceramic padding capacitors need to
> be replaced with RF-current-rated capacitors that are intended for
> tuned circuit applications.  note -- common 500pF and 1000pF doorknob
> caps are not intended for tuned circuit applications.  When all is
> well, you should see c. 750w-pep on 160m.
>
> > The tuned input seems to
> > have little effect on input SWR. although the input SWR is around 1.2
> > to
> > 1.5. according to my MFJ analyzer.
>
> At what power level was the SWR measurement taken?

At first, with a MFJ-269 analyzer, virtualy no power, the driven with a
Kenwood ts-940s with a Daiwa swr/wattmeter inline. Although I did not see
much of a change in SWR from one setup to another.

Take Care,
Keith Spainhour, KT4XW