[R-390] PTO

Tim Shoppa tshoppa at wmata.com
Wed Jun 13 09:25:43 EDT 2007


Ed wrote:

> You never can tell what you'll get.  I bought two PTOs from Radiomart-  both 
> "R-390A, checked, working, excellent". One was for an -A, with the endpoint  
> 40 Kc out.  The other was a 390 PTO which I couldn't check because the  
> connectors didn't fit my -A.  He gave me my money back, but it was a lesson  never to 
> trust the guy.  

They guy is clearly spit-and-polish and not a guy to technically
recalibrate a PTO or even distinguish one from another.

Having the endpoint out on a rather "original" PTO is to be expected
(although 40kc is more than I've ever seen - perhaps a misguided
attempt at remedying?)
This is just the direction that the parts drift over time, and the reason
that so many of us have disassembled our PTO's to remove a turn or
two and bring it back into line.

Tim.



More information about the R-390 mailing list