[Boatanchors] PTO question for R-390/URR

[Jim Brannigan]

There are extensive Cosmos articles on the R-390 reflector and the internet.

A google search will return many hits.

Jim

>I bought an early Collins R-390/URR with a Cosmos PTO in it, can I assume 
>that this is not original and the receiver has to have been modified? (It 
>is off about 9 KHz end to end) The reason I ask is I am interested in a 
>Collins PTO on epay but don't want to buy it if there will be extensive 
>modifications involved, the receiver seems to be all original otherwise. 
>The PTO plug (6 prong?) seems the same but there are several wires on the 
>front of the Cosmos that run under the PTO that are not on the Collins or I 
>don't see them anyway (I also have one with a Collins PTO). (These are both 
>390's they are not 390A's) Thanks,
>
> Bob
> KB1OKL