[aprssig] Wanted: tone-based reset module schematics

Jack Cavanagh cjcav at earthlink.net
Mon Feb 6 21:26:32 EST 2006

The National LM567C is a single chip tone decoder that will do the job.


The good news is that they are still in production.  The bad news is 
that you can no longer buy one at your local Radio Shack. (Please, let's 
not start that thread again.)


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