ASR 33 buzzing
vintagecomputer at bettercomputing.net
Fri Oct 14 15:57:59 CDT 2016
My eyes must be going.. I can't see any clothespin in that photo. I see an arrow and a dark space between that cylinder and the back of the magnet..
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of william degnan
Sent: Friday, October 14, 2016 1:45 PM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: ASR 33 buzzing
If you put a clothes pin as this photo shows, does the buzzing go away?
If so, then you may need to adjust a screw somewhere. You may have an "incomplete" ready mode (just a little chattering when current loop is closed).
On Fri, Oct 14, 2016 at 4:25 PM, Brad H <vintagecomputer at bettercomputing.net
> I found it. It`s this thing:
> I can actually see it trying to engage when I plug in. That is
> *definitely* where the noise is from. If I rotate the motor with it on,
> the noise changes depending on where the rotation is at.
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> william degnan
> Sent: Friday, October 14, 2016 1:18 PM
> To: General Discussion: On-Topic and Off-Topic Posts <
> cctalk at classiccmp.org>
> Subject: Re: ASR 33 buzzing
> It would actually be coming from the motor not the reader. The motor
> for the papertape reader is either in the pedestal (if your ASR is on
> one) or somewhere in the UCC-6 (the power supply). You have to follow
> the cable that comes from the reader along the rim of the chassis.
> On Fri, Oct 14, 2016 at 4:12 PM, Brad H <vintagecomputer@
> > wrote:
> > Good question. I only thought motor because it seemed like the
> > noise was from back there. And when I put a plastic tool against
> > the outer casing, I could feel a vibration. But now I'm wondering
> > about that paper tape reader.. when I listened to the noise again it
> > did kinda sound like it might be coming from over there. It's kind of diffuse.
> > -----Original Message-----
> > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> > william degnan
> > Sent: Friday, October 14, 2016 1:05 PM
> > To: General Discussion: On-Topic and Off-Topic Posts <
> > cctalk at classiccmp.org>
> > Subject: Re: ASR 33 buzzing
> > stupid question - you're certain the motor is making the buzz and
> > not the reader motor or somewhere on the UCC-6?
> > Bill
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