[R-390] EAC and Differences in 390A IF decks

[Tom M.]

EAC pioneered a new assembly procedure to assemble IF decks and others (RF I
think) "in the open" and then fold up the sheet metal.

They got permission from Ft. Mom to do this.  Notice how late EAC decks have
different sheet metal folds than others.

EAC also got special permission to make wire splices to enable this.

I got this info from Robert Edwards of EAC.

Interestingly enough, the Folwer IF decks were made the original "Collins" way.
 

The EAC mods did not stick to the drawings issued to Fowler.

Everyone confused yet?

Tom

--- Tom Norris <r390a at bellsouth.net> wrote:

> The tech manuals mention differences between older and newer 390A IF  
> decks, and folks here have, in the past, brought up that older  
> Collins decks were different.  Indeed they are.
> 
> If anyone wants to add an additional photo to their 390A photo  
> collections, below is a link to assorted detail photos just shot of  
> an unmodded early Collins IF deck. No dates could be found anywhere.
> 
> http://www.fernblatt.net/forradio/R390A/
> 
> Just click on the files that start with collins_r390a_IF..... etc
> There are a few shots of a fairly late Collins 390A in there as well.
> I've only come across a couple of Real Live Collins 390A's, plenty
> of the radios made by other contractors.
> 
> Feel free to use any photo you wish, and anything else in you find  
> stored
> on my server. If you click on "parent directory" then go down a bit,  
> there
> are loads of other images including a directory full of photos of  
> Fair Radio's
> old place.
> 
> The Collins 390A shown in the pics? It's been gone for a year, sorry  
> guys.
> 
> 73
> 
> Tom NU4G
> 
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