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[aprssig] Wanted: tone-based reset module schematics

Jack Cavanagh cjcav at earthlink.net
Tue Feb 7 02:26:32 UTC 2006


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

http://www.national.com/pf/LM/LM567C.html

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.)

Jack
KB4XF




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