Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!usc!elroy.jpl.nasa.gov!cit-vax!tybalt.caltech.edu!toddpw From: toddpw@tybalt.caltech.edu (Todd P. Whitesel) Newsgroups: sci.electronics Subject: Re: Digital recording on a VCR Message-ID: <13400@cit-vax.Caltech.Edu> Date: 18 Jan 90 07:16:14 GMT References: <21254@siemens.siemens.com> Sender: news@cit-vax.Caltech.Edu Distribution: usa Organization: California Institute of Technology Lines: 14 speaking of which, does anyone know what the restrictions on vcr video signals are? besides sync, is there a voltage limit (i suppose there is one because the line in/out says 1.0v peak-to-peak on everything i have). me and a friend have wondered how tough it would be to record a stream of digital pulses on a vcr tape and play them back (i.e. cheap HD backup, speed doesn't really matter). We tried putting the serial port though an op-amp and recording it on cassette tape, however we had some trouble reading the whole text file back reliably. are there any bizarre restrictions on the inputs to a tape recorder? Todd Whitesel toddpw @ tybalt.caltech.edu