The Secret Society of Lathe Trolls

NO!. It has to be TTL level: a digital pulse 0 to +5 volts. OK, I now put a transformer between my Motor control device and the Sync input of the motherboard to get the TTL level. But what happened now is the the white light don´t change its status every 1.8 sec ( at 33,3rpm) as it was before but e...

You'll find an orange or orange/white striped wire that runs from a terminal strip in the power supply to the underside of the motherboard. Detach the power supply end of this wire and connect to a TTL level 60Hz frequency source. You can Google for crystal derived 60Hz clock circuit to use for thi...

Thanks for the useful tips john !!
just calibrated with your Pulse testtone, works nice.

I PMed you because of the 50hz, 60hz issue.

Thanks for reading
best wishes from Germany
Moritz

Some Zumas were built for 50Hz line frequency, they will not work properly on a 60 Hz line, nor will a 60 Hz Zuma work properly on a 50 Hz line. The internal timings will be wrong. oh shit, my zuma runs with 110V and was used in the US before so I think my line frequency is wrong ( I'm in Germany) ...

I now cutted the first two lacquers with my new ZUMA and everything works so far. I also did a "battle" between my old vg66 pitch and the ZUMA. it was a 5 min song the discspace of the TP cutted with the old vg66 was 2,1 cm with the ZUMA it was 2 cm.... mmhh not such a huge improvement. I selected a...

Thanks I have the Zuma manua too, (but not complete) but I found out thats the same falue asked by the zuma (0.6 ref) .
After some more calibration checks I'm now on status GO

No I found the specs in the original Neumann Manual:
33,3 -> 1,1 sec
45 -> 0.84 sec

0.6 revolution ( 303 milsec)

ahh I found my problem, its not /6 but .6 which means 60% of one revolution, which means 1,1 sec...

but to know the exact specs of the pulse testtone of the ZUMA Tape would be great if anybody knows..

Thanks, all it was a great help! the input card of the zuma had a very little difference between L and R I calibrated the inputs by reading by looking at the depth meter, now its fine. I'm still a little confused because of the delay time. If I set it to 0.6 revolution ( 303 milsec) and try to calib...

thanks for your help kev, I'll check the polarity of all inputs when I'm back in the studio on Monday. I hope that will solve the problem. One more issue came me in mind. What is the correct delay time ? I fond nothing in the manual for version 1.6 which is the last one published I think. in version...

hi there all zuma users, I have a problem setting up my zuma. It came back from repair. I didn't used it before because I bought it brocken. Now I did all adjustments and all the wiring which is need to integrate it. I did the whole tests and adjusments . Everything worked fine so far, but starting ...

I found an German article about xray flexi discs made in russia in the 50-70ties. There is shown a handbuild cutter which is very nice . Here is the link http://einestages.spiegel.de/external/ShowTopicAlbumBackground/a23303/l7/l0/F.html#featuredEntry

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you have to calibrate the input of your SV 66 cards anyway ( I have the old analog pitch). I used the pitch testtone form flo kaufman. There are 4 or 5 sinus tones so you are sure your pitch work exactly over the whole frequency range. I have also a eq in the preview channel to optimize the control ...

Here we use a Benchmark DAC1 for modulation / cutting and the lnyx TWO outputs for preview. I had a mytek too but for me the Benchmark fits better..

Would anyone be interested in purchasing a modern Pitch Computer if it packed tighter grooves than a Zuma or Vinylium Ultrapitch? yes why not .... What do you dislike about your current pitching system? I use the original VMS 70 pitch "computer" it leafs too much land , and its in real time What do ...

I did this several times on my VMS. everything was correct markrob said. One tip more, you can adujst the closing time of your lock groove in your programmer ( on the inside there is one pot for this propose). So the cutterhead will lift exactly after one rotation.
good luck
MO

this is an interresting thread I have also did a testcut from this file. I used our Vinylrecorder (feedback head, precision plate) with my normal setup of plug ins. I cutted it on 45rpm with a new Stylus max. peaks were at +5 dB. Its recorded with a normal Ortofon concord over my Lynx converters (se...

it sounds like a phase problem in one channel , i have the same problem with lowfreqz some years ago, and it was the cutting amp which had no stable phase in that range. So it could be there or a phase problem in your minicut... I have a sx74 and a modified sal and cut with - 8dB here . I can go up ...

We were at a TV show for cutting a concert live on Vinyl. Unfortunatly its in German....
Here are the links :
http://www.youtube.com/watch?v=prNgcocHWyQ
http://www.youtube.com/watch?v=t7ZqOjdsQWs
http://www.youtube.com/watch?v=pNh4WvJ09aw

have fun watching it ....

I think its from Optimal-media here in Germany, they are the only one doning this as a pressed version. Minimum is a edition of 1000. I have a sample here sounds good but the hole thing is expansive..