Path: utzoo!utgpu!CUVMA!SWL-L
Date:	Wed, 28 Feb 90 21:46:26 EST
Reply-To: Shrikant Ranade <@HPLABS.HP.COM,@hpda:sranade@hpcuhb>
Sender: Short Wave Listener's List <SWL-L@CUVMA.bitnet>
Comments:     Warning -- original Sender: tag was
From:	Shrikant Ranade <@HPLABS.HP.COM,@hpda:sranade@hpcuhb>
Subject:      Re: Turned-up volume causes interference on Sony 2002?
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To:	UofToronto LAN redistribution <SWL-L@UTORGPU.uucp>
Message-ID: <90Mar1.084949est.58048@ugw.utcs.utoronto.ca>
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In rec.radio.shortwave  dross@fluffy.cs.wisc.edu (Dan Ross) writes:

> I have a Sony 2002 (a 7600D outside US?), and when using it recently noticed
> that turning the volume up a ways (like beyond halfway) seems to cause a loud
> buzzing sound.  I thought at first it was outside interference from electrical
> whatnot, but then discovered than turning the volume down makes it go away
> (and the signal is audible enough I can tell there is not interference).  I
> had some "Walkman"-type speakers which I plugged in to it, and the problem
> seemed to go away (but, of course, I don't want "simulated pseudo-stereo" of
> SW broadcasts :-).

Were you operating off mains or battery power? If the latter, this may be a
classic symptom of partly run-down cells. I have invariably found this to be
the case with the 7600D. (I almost never use batteries; the radio is too much
of a power hog.)

> Thanks--
> Dan Ross                                      Internet:  dross@cs.wisc.edu

Shrikant Ranade
sranade@hpda.hp.com