Random noise with VR

This is where record cutters raise questions about cutting, and trade wisdom and experiment results. We love Scully, Neumann, Presto, & Rek-O-Kut lathes and Wilcox-Gay Recordios (among others). We are excited by the various modern pro and semi-pro systems, too, in production and development. We use strange, extinct disc-based dictation machines. And other stuff, too.

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Random noise with VR

Post: # 47054Unread post usert560
Wed Jun 07, 2017 6:15 am

Hello everyone, I am having problems with the Souri VR, I am trying to cut a disc without turning on the amp and recording small fragments of noise without any sense, I have also tried it with the amp on and with music at the same time. I checked the needle and it is clean and well, I do not know where that sound can appear

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TheCrates
Posts: 80
Joined: Wed Jan 18, 2017 12:39 pm

Re: Random noise

Post: # 47057Unread post TheCrates
Wed Jun 07, 2017 12:26 pm

Hi, is it a second hand machine? Cheers

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soundboy75
Posts: 1
Joined: Mon Sep 01, 2014 6:28 pm

Re: Random noise

Post: # 47058Unread post soundboy75
Wed Jun 07, 2017 2:57 pm

Is it like a ticking sound?

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Re: Random noise

Post: # 47059Unread post usert560
Wed Jun 07, 2017 3:01 pm

It is a machine bought directly from Souri, it is the first time this happens and it seems strange to me. I sent an email to Souri but I wanted to open a topic here in case someone has had the same problem

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Re: Random noise

Post: # 47060Unread post usert560
Wed Jun 07, 2017 3:05 pm

It is a random tssss of half a second, a second that appears and disappears without apparent sense, I also tried with the heater of the needle to see if I could remove it but no, I also checked the weight of the head and it seems that everything is correct.

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TheCrates
Posts: 80
Joined: Wed Jan 18, 2017 12:39 pm

Re: Random noise

Post: # 47061Unread post TheCrates
Wed Jun 07, 2017 4:04 pm

Ah ok, just wondering, a few cases of new members got opened the last days and it all were bought first hand... Hopefully you get some feedback from the source soon too!

If solved, share your knowledge. Its good to have a topic /solution here, so others can benefit.

Building up a big vr knowledgebase with all the problems and solutions, here at lathetrolls... Would be OSUM :D

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Re: Random noise

Post: # 47062Unread post usert560
Wed Jun 07, 2017 4:45 pm

Okay, I received a reply from Souri a moment ago and she tells me that the problem comes from the needle, I've been looking at it carefully with the microscope and it seems that everything is fine, maybe I've seen that it's a little turned and not aligned, I've been now Adjusting it better to see if the problem comes from there

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TheCrates
Posts: 80
Joined: Wed Jan 18, 2017 12:39 pm

Re: Random noise

Post: # 47063Unread post TheCrates
Wed Jun 07, 2017 4:50 pm

Nice!

In case you didnt know, myshank is the way to go, yo! :)

http://www.myshank.com/de/content/6-faq

Good luck!

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Re: Random noise

Post: # 47065Unread post usert560
Thu Jun 08, 2017 5:32 am

Yes, I know myshank, the needle I bought it from him, I just sent him an email to see if he knows he can be and he gets me out of doubt. Thank you!

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Ben
Posts: 138
Joined: Sat Nov 22, 2014 11:31 am
Location: Montreal, Canada
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Re: Random noise

Post: # 47067Unread post Ben
Thu Jun 08, 2017 11:58 am

It can be the diamond or also if you tighten the middle screw to much with unequal pressure it can cause weird artifacts in the cuts... happened to me before.
Definitely check your stylus alignement.... It happened in the pas that I had a huge hiss, removed the stylus.... put it back ... and right after the cut was clean... so it's good to check alignment.

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TheCrates
Posts: 80
Joined: Wed Jan 18, 2017 12:39 pm

Re: Random noise

Post: # 47071Unread post TheCrates
Thu Jun 08, 2017 2:29 pm

Well like a pro cutter said once: We dont know everything at all either, were just patient, try a lot and cut cut cut.... Compared to them, have no clue about cutting records at all :D, but my comon sense say:

Ben is right, also be sure that the diamond is aligned properly if the cutting head is installed at the vr itself.
-> It may looks good under the microscope, but installed is something different (May something bend or not sitting properly etc). It should be aligned properly horizontally and vertically if mounted too.

Be sure that the heating wires are loose and not strained.

Be sure that your platter is running steady, even and not wobbeling around. (May the bearings are loose)

Be sure that the blanks lay down flat and tight, not having ups and downs while spinning.

Cut a silent groove without anything switched on, also not the feed motor. Use your microscope, have a look at your chip.

Investigate the cutting process beginning from step one.

All questions i had got solved by doing things with a exclusion process (and reading a lot here at lathetrolls of course).

Great Forum, great users by the way.

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usert560
Posts: 17
Joined: Sun Mar 29, 2015 4:19 pm

Re: Random noise

Post: # 47072Unread post usert560
Thu Jun 08, 2017 3:52 pm

Yes, I think the problem comes from the alignment of the needle, I have been adjusting it again and tomorrow I will do more tests.

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