[Milsurplus] Ferrite cores and 16Khz reception

[Ralph Cameron]

TV type flyback transformers have suitable permeabilities for VLF loops but not a convenient dimension. They are generally glued together in two halves and one half makes a good loaded inductor with fairly high Q.Getting resonance near those frequencies takes lots of high Q capacitors and many wire turns. 

Palomar Engineers make a VLF loop that goes down to 50Khz. Perhaps it could be modified to work lower. 

In the mid 60's I installed inductive loop wireless paging systems and it was normal to copy NSS in Jim Creek in downtown Toronto with a small resonant reed vest pocket receiver at 16Khz. 

Ralph 
VE3BBM  
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