[R-390] Question About the 20 Pin male bulkhead on the IF deck

[w1nzr at cs.com]

You are correct Tom !  Nick gets another gold star on his fruit salad for great work on the behalf of us boat anchor crazies..... Thanks Nick....
Cheers to all,
BB
Brown Beezer / w1nzr


-----Original Message-----
From: Tom Bridgers <tarheel6 at msn.com>
To: Brown Beezer <w1nzr at cs.com>
Cc: Collins R-390 HF Receiver List <r-390 at mailman.qth.net>
Sent: Thu, Jul 8, 2021 9:08 am
Subject: Re: [R-390] Question About the 20 Pin male bulkhead on the IF deck

Nick,
You just demonstrated once again why are you are the Chairman of the Board of the Boatanchors Group. 

Great work on answering a very difficult question! Congrats!

Still keeping those filaments lit,
Tom KE4RHH 


Sent from my iPhone

> On Jul 8, 2021, at 12:03 PM, Nick England <navy.radio at gmail.com> wrote:
> 
> I noticed that the Y2K wiring diagram repeats a potentially confusing error
> that evidently has hung around since 1956.
> According to the photo (thanks Jacques!), pin 1 is the closest to that end
> of the connector.
> The pins are staggered, not opposite each other, so pin 1 is the closest to
> that end, pin 2 is next, etc. so that pin 16 is closest to the other end.
> The Y2K wiring diagram and the 1956 TM 11-856A wiring diagram incorrectly
> show the staggered pins, with pin 2 as closest to its end. I haven't
> checked other manuals.
> The schematic says the wiring goes to pin 2.
> So Doug has dodged a bullet with his bent pin 1....
> Cheers,
> Nick England K4NYW
> www.navy-radio.com
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