Gents,

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Looking at resistive DL’s for QRO

is an interesting pursuit, and the

recommendation about employing

a VNA makes it a good return on

investment when selecting the

“产颈迟蝉.”

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One of my DL’s is a Palstar 5K.

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It’s not brand new and it’s seen

some excitation, and has smoked,

even, with whatever Murphy dumped

when I wasn’t looking.

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Now here’s the rub:

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The DL returns a 60.1 Ohm DC resistance.

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To my understanding a 60 Ohm (R) is

not 50 Ohms, (Zero) j. So I telephones

the factory and ask about buying some

in-spec tubulars for my Load, and I was

told that “Fifty ohms or sixty ohms doesn’t

matter. A null anywhere near the resonant

frequency of your tank circuit is good enough.”

“And besides, they don’t make resistors

in that wattage at fifty, only sixty.”

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I have a DL in the shed that’s fifty at J zero,

but it’s liquid cooled and I can’t shlep it

from building to building anymore.

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And I don’t think a 245 foot chunka RG8

will pass the Wiltron test for Non-Baloney.

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Comment?? Suggestions?

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TNX

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Hal Mandel

W4HBM

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