Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!samsung!zaphod.mps.ohio-state.edu!uwm.edu!psuvax1!psuvm!auvm!ITD!ADAMSON From: adamson@ITD.NRL.NAVY.MIL (Brian Adamson) Newsgroups: bit.listserv.emusic-l Subject: Humming heads on a Fostex 1/4" 8 track Message-ID: <9002051532.AA08818@css.itd.nrl.navy.mil> Date: 5 Feb 90 15:32:15 GMT Sender: Electronic Music Discussion List Reply-To: Electronic Music Discussion List Lines: 24 Approved: NETNEWS@AUVM Gateway X-To: EMUSIC-L%AUVM.BITNET@PSUVM.PSU.EDU 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. Track 6 has been doing this intermittently for a little while. But as soon as I would record something to track 6, the machine would quit the himming until it was turned off and turned back on (on an intermittent basis, of course) However, track 4 started doing the same thing out of the blue last night and the same "fix" doesn't help any. Anyone ever heard of this problem before or have any ideas what I could do about it. I am sort of guessing possible failing capacitor or something in a pre-amp circuit that's giving me this feedback coupling or whatever it is.?????? help, Brian Adamson adamson@css.itd.nrl.navy.mil