Eric, when the loading is increased it results in a
decrease in grid current, a increase in plate current,
and a decrease in power output. The opposite is true
when the loading in decreased. The log indicators
on the front panel of the HF-2500 represent
capacitance not the level of loading.
Mark WB8JKR
On Sat, 14 Mar 1998 23:05:20 EST KA2YKC <KA2YKC@aol.com> writes:
>One question I have been meaning to ask........
>
>
>Can someone please clarify "Loading" ??
>
>When I turn my LOAD counterclockwise (CMDR HF2500), the grid current
>drops
>quickly with little drop in output pwr (as recommended). Am I
>increasing or
>decreasing the loading of the antenna ???
>
>I think I am increasing the loading (even thought the dial is going to
>a
>lesser #), However, I think I read somewhere (maybe an Ameritron
>AL800H
>manual) that seemed to contradict this (or their var. cap works in the
>opposite direction - increased loading shows higher dial #) .
>
>
>I interpereted an earlier post as saying not to drop the grid by
>adjusting the
>load, rather decrease the drive from the exciter.
>
>Sometimes I wish I was born 20 years earlier so I could have been
>taught tubes
>rather than solid state when I was in school .
>
>Thanks for the free education.
>
>73 Eric
>
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