[Collins] 30S-1 R205 replacement???

[frank hughes]

Hi,
The plate voltage on my 30S-1 is running about 4200/SSB.
I found R205 open (18k ohm, 100W Ohmite wirewound), I hope this is the
cause.

http://i180.photobucket.com/albums/x257/fish1_07/bridgeport/DSC0sdf0064_zpse38abb35.jpg

Anyway, none of the usual sources have these.
Mouser
Digikey
Alliedelec
Newark
ebay
surplussalesneb
fair

I can get 15k 100W and 20K 100W, but 18 does not show up.

The parts list says the tolerance is +/- 10%, so a 20K 100W is very close,
would that be OK
as a replacement?
73
Frank
KJ4OLL