Re: It wasn't the DuoDisk, it was the second 3.5 inch drive

["John B. Matthews" <nospam@nospam.invalid>]

In article 
<944a3422-fc23-42ea-8b2c-d0f445c3e312@g31g2000yqc.googlegroups.com>,
 AppleCPM <a2@wilserv.com> wrote:

> Hi, y'all!
> 
>     Back in April I posted the following:
> "I got in the habit of leaving one of my IIgs systems on all of the
> time.  There was a power failure here recently so I went out to run
> errands rather than sitting around waiting for the power to come back
> on.  When I got back home there was a knocking sound coming from the
> area where the IIgs sits.  After some checking I determined that it
> was the DuoDisk making the noise.  The knocking sound isn't as rapid
> as the sound made by the drive when it is formatting a diskette.  But
> the weird thing is that the drive still seems to be working.  Anyone
> know what's going on with the drive? "
> 
>     Wow, talk about being completely wrong.  I finally got around to
> replacing the DuoDisk with a UniDisk only to find that the noise came
> back when I turned on the IIgs.  The drive chain connected to the IIgs
> consisted of two 3.5 inch drives and the DuoDisk.  Removing the second
> 3.5 inch drive from the chain revealed that it was the real culprit,
> not the DuoDisk.

Interesting; thanks for following up on this. I have an irrational 
dislike for DuoDisks, so I wanted that to be the problem. Sound 
direction is easier to determine at higher frequencies. Sadly those are 
the first to go. Welcome to maturity! :-)

Any way to run the 3.5 inch drive with the case off, maybe catch the 
gremlin(s) in the act?

-- 
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>