[MRCA] 4 pin power connectors...foiled again!

[WA5CAB at cs.com]

Eugene,

I don't do Harris nor Sincgars, so I've no idea what connector family they 
use nor do we know what family the ones that you got from Fair are from.  
Post the MS or UW numbers of what you got from Fair and of the one that came 
with the Harris.  Also, check the key versus pin orientation.  Although not 
too common, connectors used with WW-II, Korean War and Vietnam War vintage 
sets can have alternate key orientations.  Also, not to be insulting, but 
check the gender of the coupling screws on the cable connectors versus the ones 
in the chassis connectors.  

Robert D.

In a message dated 09/07/2012 21:39:45 PM Central Daylight Time, 
w2hx at w2hx.com writes: 
> Hey all,
> 
> This email is about the very common 4 pin power connector with the screw 
> in the center for mil radios.  Question is, were there more than one 
> "standard?"  Two years ago while visiting fair radio, I picked up a bunch of male 
> 4 pin mil connectors to work on a project to get my radios in my vehicle 
> and all powered up.  Now two years later, I am finally getting around tuit. 
> The two radios in question are a harris RF-5020, the power supply has 2 of 
> these four pin female connectors. The other radio is a sincgars RT-1439 
> sitting in the MT-6352 vehicle mount.  The MT-6352 has one male 4 pin connector 
> (to receive power) and one female 4 pin to relay power to some other rig.
> 
> To my utter amazement, I could not get the 4 pin males from fair radio to m
> ate with either of these two radios?! Yet, the 4 pin male that came with 
> the harris rig works fine on both the harris and the MT-6352?!  They both 
> have a keyway in the metal shell, and I checked the diameter of the metal 
> shell and they should fit! Only thing I can think of is that the pin distances 
> must not be the same, thus preventing mating.
> 
> So all that money spent on these connectors and...foiled! So what do I 
> need to learn about these 4 pin connectors that was clearly not obvious to 
> me!?
> 
> 
> 73 Eugene W2HX
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480