ASR 33 buzzing

[Brad H]

Okay so, a bit more playing around.  The buzzing stops if I rotate the motor.  And then after rotating the motor if I power on and off, it just makes a single click.  Every so many turns though it starts buzzing again.

So maybe we need to get back to the motor and why it's not doing anything?  

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad H
Sent: Friday, October 14, 2016 2:06 PM
To: 'General Discussion: On-Topic and Off-Topic Posts' <cctalk at classiccmp.org>
Subject: RE: ASR 33 buzzing

Think I understand.. I didn't have a clothespeg.. I took some heavy cardboard paper and folded it and then stuffed into the space between the cylinder and the back of the magnet.  Still buzzes.

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad H
Sent: Friday, October 14, 2016 1:58 PM
To: 'General Discussion: On-Topic and Off-Topic Posts' <cctalk at classiccmp.org>
Subject: RE: ASR 33 buzzing

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..

-----Original Message-----
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?
http://www.vintagecomputer.net/teletype/teletype_ASR33_clothespin-test.jpg
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).
Bill

On Fri, Oct 14, 2016 at 4:25 PM, Brad H <vintagecomputer at bettercomputing.net
> wrote:

> I found it.  It`s this thing:
>
> https://drive.google.com/open?id=0B4pq0-BHd2x6Und4QVJQdGoyaFE
>
> 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.
> B
>
> On Fri, Oct 14, 2016 at 4:12 PM, Brad H <vintagecomputer@ 
> bettercomputing.net
> > 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
> >
> >
>
>