The Secret Society of Lathe Trolls

here is another one, its not my auction...

http://cgi.ebay.com/RARE-record-vinyl-cutting-cutter-lathe-Rek-o-kut-presto-/290526490275?pt=Vintage_Electronics_R2&hash=item43a4ba6ea3#ht_500wt_1156

JayDC wrote:the feedback coils are out of phase of the drive coils.

so phase cancellation kills the head resonances, sort of error correction, to make sure the head is outputting a more correct representation of the source material..

right i forgot to mention

All right, thank you JayDC and opcode66. In other words, the amp drives the driving coil and the feedback coil is generating a voltage, especially in the resonance range of the cutterhead. This voltage goes to the amp and gets summed in small amounts with the drive signal, so that the resonances get...

could someone please point out in a sentence or two what the feedback coil is doing in a cutterhead? Would be nice, since I like to understand the function of those. Are they just moving the opposite direction as the driving coil?

would like to check out, for playback

A very nice Video about record poduction @ Pallas Records in Diepholz Germany

http://vimeo.com/10235769

until a couple days ago my stereo diy cutter head had been cutting really well! then too much top end and burned one of the voice coils!!**%%|| thats the problem using domestic tweeters you basically fry the fragile bobbin so i want to replace them with more heavy duty voice coils - preferably allo...

Thing is - we need to invite him here! absolutely, hope he is checking by someday... I have just decided to give a diy lathe a try and have ordered some parts already, since i have some eperiences in building audio devices. All the mechanical aspects are a great challenge. Another challenge is to k...

Looks like he has used different cutterheads, in the first video its piezo based as far as i can see. Apart from that a lot of common parts and some real sensitivity.

Found those on youtube. Unfortunately hes talking polish, but he has quite good results on cutting cd´s. lathe at work: http://www.youtube.com/watch?v=D5ASLGUgZww recording of the diy lathe: http://www.youtube.com/watch?v=LLgIlfr5G-k stylus and grooves: http://www.youtube.com/watch?v=HapnX48HQXI exp...