[ARC5] Arc-5 transmitter rack plugs.

[J Mcvey via ARC5]

Thanks for the info. I was aware that the wiring was different, but I was not aware of the plug difference. The rack I have was gutted anyway, which will require total rewiring.

As it turns out, I was testing for fit with an ARC-5 transmitter, but the ones I am going to use are apparently SCR-274 (silver) and those use the same plug as the ARC receivers. 

So, I'm OK.. I ASS-U-MEd that they were the same size. I learn something new every day!





On Monday, September 29, 2014 1:12 PM, Mike Morrow <kk5f at earthlink.net> wrote:
 


> ...I was presented with an odd obstacle on my transmitter rack.
> It seems that the former owner changed the male plugs that interface
> with the back of the transmitter were changed to the receiver type.
> Although they look the same, apparently  the OD alignment of the pins
> is slightly larger for the transmitter receptacle.

I can tell from your sparse description, but it sounds like you are:

1.  Trying to install a AN/ARC-5 transmitter in a SCR-274-N or ATA rack.

OR

2.  Trying to install a SCR-274-N or ATA transmitter in an AN/ARC-5 rack.

STOP RIGHT THERE!!!

The circle of pin arrangement on the AN/ARC-5 transmitter and rack connectors
is significantly larger than that for the ATA and SCR-274-N.  The wiring to
the pins are grossly different as well.

Different connectors are used throughout the AN/ARC-5 transmitter system,
because the ONLY TWO COMPONENTS in the AN/ARC-5 transmitter system that are
electrically interchaneable with equivalent components in the ATA or SCR-274-N
system are the DYNAMOTOR and the ANTENNA RELAY.  This is pointed out in many
places, such as the article at http://en.wikipedia.org/wiki/AN/ARC-5 .

Mike / KK5F