Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!portal!cup.portal.com!ISW From: ISW@cup.portal.com (Isaac S Wingfield) Newsgroups: sci.electronics Subject: Re: Time Base Correctors Message-ID: <22458@cup.portal.com> Date: 23 Sep 89 19:37:49 GMT References: <11991@cit-vax.Caltech.Edu> <2080@avsd.UUCP> Distribution: usa Organization: The Portal System (TM) Lines: 13 The first time-base corrector I ran across was in one of the early model quadruplex video tape units (probably Ampex VR-1000 or VR-1200) The TBC was implemented as an L-C delay line, with the C's being voltage variable capacitors. No, it didn't store an entire frame; maybe not even a whole line, I don't remember. Isn't history wonderful? Isaac isw@cup.portal.com