Search found 281 matches

by subkontrabob
Fri Mar 18, 2011 4:39 am
Forum: Circuits, schematics and manuals
Topic: Ortofon DS 522 feedback preamp
Replies: 10
Views: 10798

d wrote: Thank you very much. The tube design would be nice too! I will wait, there is no rush.
Ok, let's see when I can get around to this.... 8)
by subkontrabob
Fri Mar 18, 2011 4:37 am
Forum: Circuits, schematics and manuals
Topic: Test tone for cutter head calibration
Replies: 5
Views: 2086

Re: Test tone for cutter head calibration

Hi Jay, Good effort with the test tones, thank you for sharing! I've been thinking about doing something similar. I plan on using this cut to balance my cutter head, by cutting it, playing it back, and recording it to my computer. Then I can see how even each tone is reproduced, and eq to compensate...
by subkontrabob
Thu Mar 17, 2011 9:50 am
Forum: Circuits, schematics and manuals
Topic: Ortofon DS 522 feedback preamp
Replies: 10
Views: 10798

if you're interested in a tube design, I could MAYBE scan the original schematics for the Ortofon GO 511 amp (complete cutting amp with tube power amplifier from circa 1950ies). Only problem is, they're not my property, and I'm currently 1500 km away, so you would have to wait a little.......
by subkontrabob
Wed Mar 16, 2011 4:20 pm
Forum: Experimenters' & Innovators' forum
Topic: wax records
Replies: 4
Views: 1865

Re: wax records

Nice link! There also is a post about this topic with a reference to AES papers in this thread:

https://lathetrolls.com/viewtopic.php?t=2173&start=40&mforum=lathetrolls
by subkontrabob
Tue Mar 15, 2011 8:30 am
Forum: Experimenters' & Innovators' forum
Topic: Found a great meter for the homemade cutting console.
Replies: 20
Views: 4734

perfectly flat response microphone made either by Neumann or Shure are you "shure" about that? Seems odd that they would buy capsules from other companies when they manufacture (or well, USED TO manufacture) excellent ones themselves. Maybe a price issue? On the other hand I would expect that their...
by subkontrabob
Tue Mar 15, 2011 8:24 am
Forum: The Treehouse
Topic: Please watch this, especailly if your in the U.S.A
Replies: 7
Views: 2252

subkontrabob wrote:
MEGAMIKE wrote:shhhhhhhhhh there are illuminaties that are on this site...
yeah, mossy for example..... :lol:
MEGAMIKE wrote:no no he is just a swinger..

just to be clear, the pun is that "illuminatus" is latin and means "enlightened one" :wink:
by subkontrabob
Fri Mar 11, 2011 3:22 am
Forum: The Reference Archive
Topic: BOOK: "Neumann The Microphone company"
Replies: 0
Views: 1061

BOOK: "Neumann The Microphone company"

http://ecx.images-amazon.com/images/I/51FRIuUoHWL._SL500_AA300_.jpg ISBN 3-932275-68-3 I just read this fantastic book, and as a quick search suggests it hasn't been covered yet on the forum, so I decided to make a post. The book tells the story of Georg Neumann and his company on 284 colored pages...
by subkontrabob
Fri Mar 11, 2011 2:52 am
Forum: The Treehouse
Topic: Please watch this, especailly if your in the U.S.A
Replies: 7
Views: 2252

MEGAMIKE wrote:shhhhhhhhhh there are illuminaties that are on this site...
yeah, mossy for example..... :lol:
by subkontrabob
Fri Mar 11, 2011 2:46 am
Forum: Experimenters' & Innovators' forum
Topic: Found a great meter for the homemade cutting console.
Replies: 20
Views: 4734

there is an old program called JBL smaart that does exactly wat u want.. all u need is it and a microphone.. SMAART is still around, but independent from JBL. Is the original JBL version available? http://www.rationalacoustics.com/ There are many programs to choose from nowadays, MAC or PC, even so...
by subkontrabob
Fri Mar 11, 2011 2:32 am
Forum: The Reference Archive
Topic: Cost of Equipment in 1989 : Sony 1630 / Used Neumann VMS82
Replies: 16
Views: 5157

so you make the lathe out of hollow aluminum, and fill the cavities with expanding foam. saves a little on metal, keeps the weight down, and provides rock solid dampening from vibrations.. Just a thought as far as I can tell, the base of the Neumann AM31 I've used is hollow and made out of aluminiu...
by subkontrabob
Tue Mar 08, 2011 7:42 pm
Forum: Secrets of the Lathe Trolls
Topic: Noisy K8 cuts, what the deal?
Replies: 42
Views: 7566

JayDC wrote:well presto is know for making 15ohm, and 500ohm heads.. if yours is 500ohm, you have have the coil rewound to 8 or 15..
just crossed my mind, maybe a transformer could be used if it's 500 ohm?
by subkontrabob
Fri Mar 04, 2011 2:24 pm
Forum: Plating and Pressing
Topic: speed of the press ram
Replies: 29
Views: 6156

When I worked in Lithuania Film Studio I saw with my own eyes - precision tables and equipment were thrown from the 3rd flood directly on the concrete. Just before that truck of equipment like studio reel recorders (including Nagra's), cinema projectors and more stuff were thrown to metal trash pla...
by subkontrabob
Fri Mar 04, 2011 1:27 am
Forum: Classifieds & tip-offs
Topic: WTB: DISK RECORDING VOL.1: GROOVE GEOMETRY AND THE RECORDING
Replies: 1
Views: 750

*knocking on wood* sorry to hear it's out of print. I got mine one year ago, so it hasn't been sold out for very long. If you can afford it, you could buy a one year AES e-library subscription, that way you can download all the papers that are in both disk recording volumes and then some - after the...
by subkontrabob
Fri Feb 25, 2011 7:20 am
Forum: The Reference Archive
Topic: FREE BOOKS!
Replies: 6
Views: 2351

irfanview for Windows is simple and free (as in beer)
by subkontrabob
Thu Feb 24, 2011 12:31 pm
Forum: The Reference Archive
Topic: FREE BOOKS!
Replies: 6
Views: 2351

Just saying there is the (however unlikely) potential for legal hassle with such links for Steve, and I suppose nobody wants that.....

Nice collection of books by the way! Bob Morrison's is particularly insightful.
by subkontrabob
Thu Feb 24, 2011 9:01 am
Forum: The Reference Archive
Topic: FREE BOOKS!
Replies: 6
Views: 2351

You are aware of the fact that these are copyrighted works that are still in print? :?
by subkontrabob
Wed Feb 23, 2011 9:26 am
Forum: Secrets of the Lathe Trolls
Topic: What kind of recording devices are out there???
Replies: 20
Views: 6366

I think a Tefifon would be a good addition to your "weirdo stuff collection", because it's an exceptional piece of engineering. The recording medium is a tape loop, in endless Moebius strip configuration. There are several units on german ebay, they seem to fit your budget too. :D
by subkontrabob
Wed Feb 23, 2011 8:46 am
Forum: The Reference Archive
Topic: Building a cutter head / homemade lathe
Replies: 19
Views: 10847

Re: VMS 70/80

Interesting, thankyou :D I've been wondering about these things! So the dashpot and spring arrangement allows for any warp to the disc? It can compensate a little bit of it. I posted some pics of the dashpot/spring assembly in my AM31 thread over here: https://lathetrolls.com/viewtopic.php?t=1805&h...