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What are you guys using to modulate sofan heads with (that bit is missing).
I have seen references to boards that Bob Platts used to supply, are they still
Does anybody also know a source of the old bluecap LNB's. Eby has drawn
a blank as they are all probably in the bin by now. The 'turning the transistors around'
looks an interesting way to do things..
There is an article with circuit diagrams for a similar unit at http://www.atv-projects.com/Gunn_Diode_Controller.html