Farnell 352C 1GHz Spectrum analyser

[ppppenguin]

I don't think there's any such thing as a standard 220M film resistor. Values like that are available but they are specialist parts. What are the markings on it? If colour coded it would be red/red/violet. If standard numerical coding it would be 227. If it says 220M then that's most unlikely to mean 220 megohms. As always, photos would help.

As for PMs, this is an open discussion. I don't see any reason for part of it to become a private matter between you and me.