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deforest: Friendly Service from De Forest

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Forum » Radios and other type of sets (Physics) etc. » MODELS DISPLAYED » deforest: Friendly Service from De Forest
           
Wolfram Zylka
Wolfram Zylka
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10.Nov.09 17:29

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Friendly Service from De Forest
 
During my Holiday in Ireland, I was successful and got a set of De Forest coils.
The Label on those coils is very useful.
There is a Diagram were you can easily read what will be the wave length in relation
to the related Capacity between 0 and 1000 pF.
 
Nice also: What are the wild Waves saying
 
Best wishes
Wolfram Zylka
Konrad Birkner † 12.08.2014
Konrad Birkner † 12.08.2014
 
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10.Nov.09 19:45

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Sorry, but I doubt deForest. such coils were made by Igranic.

The DeForest Honeycomb Coils with their typical pin/jack base are an invention made in 1919 by Robert F.Gowen, Chief Engineer at DeForest.

This article was edited 10.Nov.09 20:57 by Konrad Birkner † 12.08.2014 .

  
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