Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!rpi!batcomputer!gaarder
From: gaarder@batcomputer.tn.cornell.edu (Steve Gaarder)
Newsgroups: sci.electronics
Subject: Re: Ring signal generation (was DTMF Decoder IC)
Message-ID: <1990Oct17.175557.2069@batcomputer.tn.cornell.edu>
Date: 17 Oct 90 17:55:57 GMT
References: <14793@mentor.cc.purdue.edu> <27114b84-483.1sci.electronics-1@vpnet.chi.il.us> <14913@mentor.cc.purdue.edu>
Organization: Cornell Theory Center
Lines: 7

Last time I checked, Fair Radio Sales has a ring signal generator in their
catalog.  It takes a 90 volt DC input and makes 90V 20 Hz.  It is basically
a vibrator (anyone remember those?) unit.  I bought one; it does work,
though I haven't built it into anything yet.

Steve Gaarder
gaarder@bat.tn.cornell.edu