Compatable replacement resistors??? WG K7500

OU Flight

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I am trying to find a replacement resistor for my WG K7500. It is R120 in the manual, 68K OHM 5% 2W CF.

The only CF resistors I'm finding available are smaller Watts and still be CF.

Digikey does have some 68K 2W but the are metal film. Does this matter?

I also need to find replacements for R303 1.2 OHM 5% 2W MF. No luck with this one either.

Is it allowable to substitute different values of resistors, and if so how close do they have to be? Still don't really know much about this stuff so any help is much appriciated.
 
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