Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!samsung!brutus.cs.uiuc.edu!psuvax1!psuvm!auvm!UTCVM!JEFF From: JEFF@UTCVM.BITNET (Jeffrey R Kell) Newsgroups: bit.listserv.emusic-l Subject: Re: Humming heads on a Fostex 1/4" 8 track Message-ID: <900205.151350.EST.JEFF@UTCVM> Date: 5 Feb 90 20:13:50 GMT Sender: Electronic Music Discussion List Reply-To: Electronic Music Discussion List Organization: University of Tennessee at Chattanooga Lines: 14 Approved: NETNEWS@AUVM Gateway In-Reply-To: Message of Mon, 5 Feb 90 10:32:15 -0500 from On Mon, 5 Feb 90 10:32:15 -0500 Brian Adamson said: >Here's a question of a different sort, > I've developed a weird problem as of late. My Fostex A-8 1/4" >8 track recorder has developed what sounds like a 60 Hz hum when >monitoring the tape head of tracks 4 & 6. It sounds like a feedback >loop of some sort. . . Demagnetizing doesn't help. Hmmm... (pun intentional)... do you have dBX on that deck by chance? (Just a stab in the dark...) Sounds like a problem I had with an old TEAC 3440 w/dBx add-on unit. The EQ chips are notorious for that, and the damn things are proprietary ICs (or at least were) for which you must custom-order at a premium price. /Jeff/