28-07-2015, 11:20 AM
(This post was last modified: 28-07-2015, 11:38 AM by Alan Douglas.)
Neutrodynes are common enough here but I've never seen a British one. Is there a name on the coils?
There were "licensed" Neutrodynes made by 14 manufacturers under Hazeltine's patent, and there were kits of parts sold. The trademark was aggressively defended but there were some off-brand sets with the coils fixed at the "correct" angle (which however varied with the coil spacing) of 55 degrees.
There were "licensed" Neutrodynes made by 14 manufacturers under Hazeltine's patent, and there were kits of parts sold. The trademark was aggressively defended but there were some off-brand sets with the coils fixed at the "correct" angle (which however varied with the coil spacing) of 55 degrees.






