[Collins] Assembly part numbers

[Fred Hall]

Hello.

I have just come across an item by yourself ( I believe ) which suggests you have some manuals for the Collins 490t-9 antenna coupler.
The article was in 2014 so you may not now have the manuals but can you let me know if you can help in any way.
I am putting together a Collins 618t-3 aircraft transceiver and its various options and have now got a 490t-9 antenna coupler but no info.

I am in the UK

Best Wishes

Fred 

G8IQA