[GreenKeys] [External] Equivalents for KS7470 oil and KS7471 grease

[Jones, Douglas W]

From: Michael Katzmann [vk2bea at gmail.com]

> I found this page (https://homepage.cs.uiowa.edu/~jones/pdp8/UI-8/ks7470oil.shtml) but
> many of the links are broken, so it's probably a few years old.

Thanks for the reminder.  I put in some time with Google and the wayback machine and tried to restore many of the links.  Not done with the grease yet, but most of the products discussed are certainly still available.  Bless the manufacturers for moving their stuff around on the web and breaking the links.

        Doug Jones
        jones at cs.uiowa.edu