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-boun...@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@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 <vintagecompu...@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-boun...@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@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 > >
