[ARC5] Toroid for 9:1 Balun

gordon white gewhite at crosslink.net
Tue Sep 1 12:52:45 EDT 2015


I have a couple of toroid coils from old telephone co loading coils.

Were once used by RTTYers.

Do not know the value.

Once upon the time I would buy steel "pots" from a WECO scrap dealer and 
laboriously cut them open to get these coils out.  My kids (this was 
back in the 1980s) would cut them apart after I cut open the pots.

Of course the kids are now in their 40s and 50s and would not do such a 
thing. I do not know if the phone companies use these any more

Gordon Eliot White


More information about the ARC5 mailing list