Elecraft W2 that I have is a nice toy to give flashing lights to the shack, but
very frustrating to use to try to peak up a linear amp. The gradients of the
bars in the bar graph are just not fine enuf to do the final adjustimet to an
amp. Skip this one. I use the WM-1 from autek and it is also satisfyingly
old fashioned looking, has both peak and incident readings. 73
Charles Harpole
k4vud@hotmail.com
> Date: Fri, 2 Mar 2012 19:07:57 -0800
> From: audioguy@q.com
> To: Amps@contesting.com
> Subject: [Amps] Elecraft W2, or other"best" meter for tweaking the beast(s)?
>
> Has anyone tried the Elecraft W2 bar-graph wattmeter for tweaking their
> legal-limit amp? I read somewhere that the peak-hold is something like a
> second. If so, probably too long to be useful for my purposes.
>
> I have a calibrated LP-100A, and while it's plenty "accurate" enough for
> most amateur use, the display doesn't update quickly enough for easy
> tuning in normal peak mode, and the peak hold is something like 10
> seconds - again not useful for tuning an amp.
>
> So... I also have a Bird 43 with a peak-reading board, which actually
> works fine for bench use, but isn't great as a fixed-station device. The
> one I keep going back to is the old Heathkit HM-2140 with the op-amp
> peak circuit. The timing of the peak-hold circuit just seems to work for
> me for tuning amps, but the meter faces are relatively small and it's
> quite old now.
>
> Again - I'm not looking to start another accuracy debate. Ultimate
> accuracy really isn't the point - I can use the LP-100A at the end of
> the circuit for absolute readings. Ease of use, timing of the
> peak-reading circuit and other amenities for tuning amps are the
> criteria I'm using here.
>
> Thanks,
> Jim N7CXI
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|