Search found 139 matches
- Wed Aug 09, 2023 4:49 pm
- Forum: Classifieds & tip-offs
- Topic: Neumann AM32 with Upgrades
- Replies: 5
- Views: 6039
Re: Neumann AM32 with Upgrades
Hubba hubba. AM32 and an SX45, together. (Would love to be able to zoom in on those pictures.) Fwiw, was just checking out an old edition of Radio-Electronics from March of 1964 (Vol. XXXV No.3), which happens to have on the cover master-cutter Claude Rie, using a Neumann lathe with SX-45 stereo cut...
- Thu Aug 03, 2023 11:25 pm
- Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
- Topic: Scully Automatic Feed Control Alignment procedure
- Replies: 2
- Views: 5237
Re: Scully Automatic Feed Control Alignment procedure
Might try messaging EmAtChapterV - who left the post with instructions, here, that you might be referring to. https://www.lathetrolls.com/viewtopic.php?t=4111&start=20 Good luck calibrating that machine. Check everything, and then recheck. Plus remember, it's Hammer Time (you've got to pray, jus...
- Fri Jul 21, 2023 7:33 pm
- Forum: Secrets of the Lathe Trolls
- Topic: True 78 cut on Lacquer master
- Replies: 10
- Views: 6181
Re: True 78 cut on Lacquer master
If I were to cut the lacquers, I'd use an arbitrary function generator to create the reference clock signal for the turntable servo (and another for feed compensation), while cutting fixed-pitch, which maxes at 100 LPI on my machine, so that it can cut at full speed (since the servo's crystal's mast...
- Wed Jul 19, 2023 9:41 pm
- Forum: Secrets of the Lathe Trolls
- Topic: True 78 cut on Lacquer master
- Replies: 10
- Views: 6181
Re: True 78 cut on Lacquer master
Whilst 300 Hz is a reasonable approximation for many a shellac's bass-turn-over- F, 200 - 500 cps includes most of the variety of the turn-over frequencies that were used on electric-era 78s, and many were right around 375 cps (i.e., 424 µs (= 375 cps), rather than 530 µs (= 300 cps)), according to ...
- Wed Jul 19, 2023 12:49 am
- Forum: Secrets of the Lathe Trolls
- Topic: True 78 cut on Lacquer master
- Replies: 10
- Views: 6181
Re: True 78 cut on Lacquer master
...the treble pre-emphasis time-constant used for playback at 78 would also have to be multiplied by 0.57 for cutting at 45. ...agree that the record-eq time-constant needs to be a bigger number (ergo, divide previous tau by 0.57 for a lower center frequency) if the cut is done at a fraction of the...
- Tue Jul 18, 2023 11:18 pm
- Forum: Secrets of the Lathe Trolls
- Topic: True 78 cut on Lacquer master
- Replies: 10
- Views: 6181
Re: True 78 cut on Lacquer master
It's not just saying 'use a bit of EQ', Dub Studio. Arguably most 78 records were cut with a 300-ish-Hz high-bass turn-over frequency, and an 11 - to - 15 -dB low bass cut around 50 Hz. While there was some variety to the bass turn-over frequency used for wax mastering - the variety was relatively c...
- Mon Jul 17, 2023 11:06 pm
- Forum: Secrets of the Lathe Trolls
- Topic: True 78 cut on Lacquer master
- Replies: 10
- Views: 6181
Re: True 78 cut on Lacquer master
Fractional speed cutting ideally would include a customized recording network with adjusted time constants for proper decoding on playback at speed. 1/2-speed-capable cutting amps with built-in RIAA, por ejemplo. have this extra feature.
- Mon Jul 03, 2023 4:47 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Fairchild 740 Belts
- Replies: 9
- Views: 3375
Re: Fairchild 740 Belts
Oblivious to...? Have you tried contacting Hamilton Records, in Argentina? They show a 740... and boast having "3 unidades indepentes". http://www.hamiltonrecords.com.ar/tecnica.html Alternatively, could a miniature variable frequency drive inverter can be obtained that would allow you to adjust the...
- Sun Jul 02, 2023 3:23 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Fairchild 740 Belts
- Replies: 9
- Views: 3375
Re: Fairchild 740 Belts
As you may know already, the circumference of a belt doesn't affect the speed - but it will affect the removal and replacement ability, given whatever positioning constraints are applied by the motor mount and/or for æsthetics, if the position of the works is at all visible. I'm almost gladdened to ...
- Sat Jul 01, 2023 7:35 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Fairchild 740 Belts
- Replies: 9
- Views: 3375
Re: Fairchild 740 Belts
They look pretty darned thick. I use belts for my lathe platters, but they're only 3.0 mils thick. so my OEM may not be helpful if you need them thick. The thickness (aka 'ply') is definitely part of the gear-ratio of the platter and motor pulley system. I could not use a 3.5 mils thick belt, for ex...
- Fri Jun 30, 2023 5:44 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Fairchild 740 Belts
- Replies: 9
- Views: 3375
- Tue Jun 13, 2023 9:44 am
- Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
- Topic: Lathes in Jamaica
- Replies: 26
- Views: 38406
Re: Lathes in Jamaica
Don't you just hate it when you start a thread about a conspiracy theory, and someone comes along and kills it with some cold hard facts like this. Dear Double-plus UnCool, So, what are your 'cold, hard facts' about the unsolved murder, on the 37th day of 1989 A. D., of the man whose Christian name...
- Sun Jun 04, 2023 1:09 pm
- Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
- Topic: Lathes in Jamaica
- Replies: 26
- Views: 38406
Re: Lathes in Jamaica
i think he is in front of a coil winder. but looks great. That must be what he's doing - merci, Flozki. Btw, i noticed in the Vinyl Factory's Cutting Edge article from 4 years ago that you mentioned Neumann's last lathe being sold in 1989 - the year of Tubby's unsolved murder. https://thevinylfacto...
- Fri Jun 02, 2023 12:59 pm
- Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
- Topic: Lathes in Jamaica
- Replies: 26
- Views: 38406
Re: Lathes in Jamaica
He's sat there fixing or cannibalizing overheads, innit? https://i.scdn.co/image/ee08962ddb9c7f27a3ad5ed6052aa8deef521331 I found a photo online of Mr. Ruddock making the hand-sign of Practicus - hopefully mocking Ras Tafari for doing that, but, since O. R. was reportedly murdered, it's likely that ...
- Thu Jun 01, 2023 8:49 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Over-cutting anyone done any?
- Replies: 5
- Views: 6631
Re: Over-cutting anyone done any?
You may have encountered this concept in your study, already, but it may be worth mentioning in your paper that, with the standard, Micropoint-style lacquer-cutting stylus, having the enormous 40-degree back angle, when we get to the end of the side, due to the ever- slowing land speed at reduced di...
- Sun May 28, 2023 4:20 pm
- Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
- Topic: Perfect Groove Status Update
- Replies: 8
- Views: 8062
Re: Perfect Groove Status Update
Hi Alex, did you use the 'Free License Credentials' on the website? Email Address: vinylator@perfectgroove.com / License Key: 22B0-06AB-98BD I used them on Mac OS 10.14.1 (which I still use for compatibility with soundBlade and QuickTime Pro) and was able to run Perfect Groove perfectly. (: Bonne ch...
- Tue May 23, 2023 1:52 pm
- Forum: Secrets of the Lathe Trolls
- Topic: VR T-560 Back Angle Contradictions
- Replies: 14
- Views: 11836
Re: VR T-560 Back Angle Contradictions
Indeed, the Ortofon cutting head is held at the target vertical cutting angle - plus an additional 5 degrees for lacquer-springback compensation and another 5 degrees for stylus-holder-flexion compensation - so, for lacquer cutting, a 25-degree VCA would create groove modulation that can be nicely p...
- Wed May 10, 2023 6:02 pm
- Forum: Secrets of the Lathe Trolls
- Topic: In need of tips, advice and suggestions for pressing records
- Replies: 21
- Views: 15734
Re: In need of tips, advice and suggestions for pressing records
A possible cause of the mis-connection being made (conceptually) between 'non-fill' and 'stitching' might be as simple as the grammatical difference between 'non-filling' and 'un-filling'. As mentioned, because some of the 'material' ends up on the stamper when one sees 'stitching' in the pile, it m...
- Thu May 04, 2023 5:18 pm
- Forum: Secrets of the Lathe Trolls
- Topic: modding a Vanrock/Atom to cut 5" discs
- Replies: 4
- Views: 2290
Re: modding a Vanrock/Atom to cut 5" discs
I read that Emil Berliner's first gramophone records were 5" diameter. But they were intended as a child's toy, since the sound quality at disk radii less than 3 inches is rather compromised. As for the mod - since it would still be kewl to emboss on 5" disks - move the mount 1.0" to cut at 5.0" ins...
- Sun Apr 23, 2023 5:58 am
- Forum: Secrets of the Lathe Trolls
- Topic: VR vacuum pump
- Replies: 12
- Views: 4919
Re: VR vacuum pump
Why reinvent the wheel, innit? The old wooden boxes made by Lee contained an Ametek / Lamb motor. So, roll your own Lee chip pump... Make a small wooden box that can just hold this motor: https://www.thevacuumfactory.com/product/lamb-ametek-116342-00-2-stage-5-7-vacuum-motor-220-volt/ Have a neopren...