[R-390] MWO 94-35/2

[rbethman]

Ben.

Markings regarding MWOs took several different directions.

Some may be marked such as you have noted, and then some are like my '51 
contract Collins R-390A, and are stamped on each module as "Mod 2" by 
Collins, and covered with shellac or something similar.

Mine indicates that the radio had "Mod 2" applied at the factory.  Yours 
may indicate that it was applied at Depot, after the radio left the plant.

One would have to go into the Y2K-R3 manual to track what mods were 
applied and when.

Bob - N0DGN

On 2/8/2012 11:44 AM, Ben Loper wrote:
> I'm working on a Collins R-390A and right above the data plate is printed
> MWO xxxxx94-35/2, the center portion is rubbed out.  Does anyone have any
> info on that modification. Thanks