Please click your language flag. Bitte Sprachflagge klicken.

deforest: Friendly Service from De Forest

Martin Renz Ernst Erb Vincent de Franco Martin Bösch Bernhard Nagel Otmar Jung Heribert Jung Eilert Menke 
Please click the blue info button to read more about this page.
Forum » Radios and other type of sets (Physics) etc. » MODELS DISPLAYED » deforest: Friendly Service from De Forest
Wolfram Zylka
Wolfram Zylka
D  Articles: 592
Schem.: 3
Pict.: 415
10.Nov.09 17:29

Count of Thanks: 3
Reply  |  You aren't logged in. (Guest)   1


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
D  Articles: 2334
Schem.: 700
Pict.: 3655
10.Nov.09 19:45

Count of Thanks: 3
Reply  |  You aren't logged in. (Guest)   2

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 .