[Collins] Looking for information on the Cunningham C201 and C203tubes

[Dr. Gerald N. Johnson]

On 9/2/2010 7:38 PM, Carl wrote:
> They certainly were full of themselves werent they?

That was Art. He was that way until they buried him. His world revolved 
around him with little concern for the lives of those he paid. Without a 
formal engineering education he passed judgment on all project details. 
After he lost control of the company and sold out due to HIS poor 
management, he opened a management consulting business which didn't do well.
>
> I have all those QST's in hard copy. I'll try and blow up that 9/36 ad a
> bit more and see how many tubes I can identify. I dont know which will
> be better, working with the link image or using the Agfa scanner on the
> magazine.

You'll run into a moire pattern either way because its a halftone, but 
you may be able to control it by scanning at 45 degrees or going super 
fine on the scan.
>
> A C866A....gimme a break!
>
> Did they ever have a tube list published?

That ad shows what appears to be a tube catalog. I've never seen such a 
thing, but I've only really known about the C series tubes for the 
length of this discussion.

There might be something in the list at:
http://www.lib.uiowa.edu/spec-coll/msc/ToMsC850/MsC814/CollinsRadioCompanyRecords.html

Searching for collins tubes I came upon:
http://www.rwonline.com/article/85754
A viewpoint of the 821A-1 from the Continental viewpoint.
>
> Carl
>
>