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From: ejk47@ihuxn.UUCP (Ed Kufeldt, ihuxn ejk47)
Newsgroups: net.micro.cbm
Subject: Re: 64 cassette interface kit
Message-ID: <478@ihuxn.UUCP>
Date: Fri, 6-Jan-84 09:37:21 EST
Article-I.D.: ihuxn.478
Posted: Fri Jan  6 09:37:21 1984
Date-Received: Sat, 7-Jan-84 02:42:58 EST
References: <536@ariel.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 13

Dave if this is the same article I think it is, Don't waste
your time.  The article I refer to used standard TTL gates and
tried biasing them to work towards the analog side.  The interface
recorded beautifully, but you could not read tapes that were recorded
on another machine.  A friend and I built a couple of these interfaces,
and we spent months trying to get them to work before we finally sent them
to the scrap-pile.  I designed an interface using Op-Amps and it has
been working fine for over a year.  The circuit I designed works with
all the tapes I have purchased and is compatible with most recorders in
the $30.00 range.

                                  Ed Kufeldt
                                  BTLz