The Secret Society of Lathe Trolls

I couldn't find the patent by googling the number you mentioned, are you sure it's complete/correct? Does anyone have general information on these "Universal" machines? What is the full name of the company? Is it related to Bill Putnam / Universal Audio ? (I suppose not) It would be nice to collect ...

Hi, Perhaps I'm missing something here. But since L-R is the vertical component of the stereo signal cut into a groove. If you built a difference amp that produced the L-R signal (simple), then when you drop the needle its vertical motion will yield a leading edge positive voltage if captured on a ...

Great thread!!!! :D (btw, in 1964 NAB Standard there is no "inverted" in the whole text...) Well, strictly speaking you are right Lukas, there is no direct mention of this. The question is effectively avoided. There is no reference to the absolute polarity of the channels. Stereophonic Groove Charac...

thank you mark & Sillitoe,

and sorry everyone, I had to pull the file for now, because the fish is not completely fried yet...... I will repost soon!

wow, I never checked back on this thread, and failed to notice this post those are some really nice pictures, thank you for sharing! Does anybody have any documentation or manuals related the AM31? I have asked a lot of people about AM31 manuals to no avail. It seems that no one has any. Some more p...

leo gonzalez wrote:my scully is called joana actually!!


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Seriously?

Or is it an inside joke based on certain recent events involving "original" Polish Neumann VMS 2000?

I wish you luck. Stereo is a lot more complicated than mono. Very little will carryover from the one to the other. Why not make my metal parts for Bladerunner? Also this thread probably should reside in the experimenters section. Moderator? agreed, this is not the right place for this fantastic thr...

Dear fellow Trolls, some of the veteran members maybe remember this old thread I started almost six years ago: http://lathetrolls.com/viewtopic.php?f=1&t=1484 I joined this forum at the time to find information and help to do a recording project on a Neumann AM31. I knew next to nothing about record...

Alles Gute Andreas, ich hoffe es ist nichts Schlimmes!

I didn't think wax could be played back, but rather had to be used for the processing of molds, stampers, etc. The 1943 Neumann electroacoustic pocketbook mentions special light- weight pickups for wax playback. There is also a picture of a wax shaving machine, with which a wax can be cleared for a...

http://www.americanradiohistory.com/Archive-Recording-Engineer/70s/Recording-1978-08.pdf Beautiful Buchmann Meyer light patterns on the cover, a controversial rant about the quality of pressings by Bill Szymczyk, a very long interview feature with seven prominent mastering engineers (Bernie Grundma...

Serif wrote: - Lieutenant Black Uhuru

love the pun!!!!

crisis or not, the seller is actually the same annoying HiFi collector from switzerland that had the strange swiss lathe with Ortofon cutterhead and tube amp on ebay before. Let's see how high this one will hike..... :roll: Mossy is probably right about the uses of the R21 in the various german "org...

Yep, AM31, with original platter to accommodate wax cakes!!!

funny thing is, the "Goebbels-Mic" only got a bid of 4000 €...... I'd expected it to be the other way around...

12.371 €

insane.........

capitalism sucks!

http://www.ebay.de/itm/Neumann-Cutting-Head-from-Lathe-VMS70-for-new-vinyls-/140634032620?pt=Plattenspieler&hash=item20be7109ec#ht_1431wt_1346 With a whopping 7777 € starting bid..... :twisted: funny thing is, you can clearly see on the photos that the ruby has broken off or at least dropped out of...

andy,

thank you for the kind effort, but this is just the ARTE player embedded to another page - still doesn't work for me.

But I'll pick up the DVD anyway.......

(there is going to be a DVD, right?)

regards,

bob