(31-07-2012, 06:47 PM)pwdrive Wrote: OK, bit of a long shot, anyone know what the name of the 12 way output connector is on the Racal RA218 Independent Sideband Adapter and where I might obtain one?
Thanks.
Lawrence.
Looks like a Plessey Mk. 4. If my memory serves me right (which is asking a lot these days!), those came in 2 orientations (might have been more
) - as per Alan's comment. One good reason for that was with the 3-way connector: commonly used for a mains connection, but a 3-way could also be used for other purposes where a 3-wire connection was required and a 'mains input' was most definitely NOT required! 
Now I seem to have a very vague idea that the orientation might be changeable within the plug / socket (for a given type), but I certainly wouldn't want to bet any money on that . . . . after all, it was all such a very long time ago! 
As for obtaining a matching connector, try looking around some of the Military Radio Collectors sites - such as VMARS. Plessey Mk. 4 connectors were always very common on military kit. Needless to say, you'll need to specify the orientation . . . . .
Al.
