[Milsurplus] Robertson ( Norway ) conversions of U.S. military surplus ?

[Kenneth G. Gordon]

On 11 Jun 2017 at 22:18, Hubert Miller wrote:

> Was looking for info on the Heathkit IM-18 and the transistor replacement plugins for it, on this page,
> http://www.heathkit.nu/heathkit_nu_Robertson.html
> and encountered this:
> 
> "The activity was placed in the attic of the wool-factory Svanedal
> Ullvarefabrikk. In 1946 Thorleif bought about 3000 units of
> transmitters, of mainly two types, on the American surplus market.
> Thorleif and the approximately ten employees converted and modified
> the units to fulfill the demands of Telegrafstyret (the Norwegian
> Telegraph Service) to be installed in Norwegian fishing vessels. They
> came on the market as the Radio-Telephones 4601/461 and 4770/475.
> Robertson was the first to launch this kind of products on the market.
> " 
> 
> There is a photo, but it is actually too distant and too low-res to be
> of any help. There "may" be units looking like TBW / GO-9 sections for
> maybe TU- plugins for the BC-191/ 375 stacked on their sides, but very
> indistinct. 

Not quite. It is very obvious to me that the units stacked on the "table" on the left are 
BC-191/375 tuning units without their CS-48 cases. 

On the "table" on the right, it is obvious to me that there are two BC-191/375 transmitters with 
their outer covers removed. Behind the fellow sitting at the end of that table there is at least 
one more BC-191/375 with the covers removed, looking at the back of it. To the right (my 
right) of that one is another BC-191/375 with the covers installed, and again, from the back.

Although I am not totally certain, it looks to me as though the fellow sitting at the end of the 
table on the right is working on a BC-191/375 tuning unit with all the covers removed. The 
black circular object right in front of his right shoulder but on this side of the unit he is working 
on looks exactly like that thumb-wheel adjustment which sticks through a slot on the front of 
some of the BC-191/375 tunings units.

Although I am not totally certain of this, there are what look to me like 4 BC-191/375 
transmitters, perhaps completed, on the far end of the table which is on the left. 

The man standing at the end of that table is working on another transmitter which does NOT 
look like it is a BC-191/375 transmitter, but I am not sure about this either.

Ken W7EKB

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