[R-390] Friction in KC Change Chain

[Drew P.]

Curt Nixon wrote:

[snipped]

"The metal roller does not rotate..the stack edge is simply greased.  It
sure would seem that they would have made that a roller and not a
slider.  Can you confirm this one way or the other.  Also, is there a
reference somewhere on the internals and assembly, etc of the Collins
PTO..I have had no success finding anything."

In my Progressitron unit, the steel "roller" did not roll.

There is an excellent online reference for the Cosmos unit but I have not yet seen any for the non-Cosmos type.  You have started the process with the series of photographs on your blog site.  It would appear that aside from the aforementioned ER article that you will be the trailblazer for non-cosmos PTO documentation.

Thank you for posting photographs and starting the documentation process.  The excellent online references we have for other aspects of these radios have all been the work of generous individuals such as you.  All of us in the R-390x community look forward to referencing your completed work.

Drew