[R-390]R-390/URR Questions

[Mike Crawford]

Gentlemen,

I am a long time lurker, first time poster. The time has come to pick the 
collective brain.

I have a R-390/URR which I acquired several years ago but am just getting 
around to working on. It is in fairly good condition, not pristine by any 
means, but all of the big pieces seem to be there and no major mouse nests 
are to be seen.

It is missing 1 small and 1 medium knob along with the rack handles. I see 
that Fair Radio has these items for the R-390A and was wondering, are they 
interchangeable?

It also seems to be missing the "green gear". As I am planning on completely 
tearing down and cleaning the gear train is the green gear necessary at all?

The power cord is missing and I have been studying Roy Morgan's diatribe on 
power cords and bypassing and am leaning towards replacing the 
connector/filter with a modern computer connector and line filter. Any 
comments?

I have copies of a couple of R-390 FAQs and the -10 -20, and -35 TMs. Are 
there any R-390/URR specific web sites? I have found several for the 
R-390A/URR, but none for the R-390/URR.

Thanks in advance for any help you might be able to give me.

Mike