If someone wants to send me NOS of the orange, green, red and Tungstone (I have used ones only AFAIK of the TT), I can do SEM of the needle tips. They would not be changed by the examination and would still be usable.
Ron L -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Merle Sprinzen Sent: Wednesday, May 10, 2006 10:25 AM To: [email protected] Subject: Re: [Phono-L] RCA microgroove LP demo disc from ca. 1932 - anyinfo?? I'm catching up on some old emails and found this posting from Robert (unfortunately without his email address, and so I need to write this note to the whole list -- sorry, but maybe other people would be interested, too). I'd be VERY interested in a scan of the part that describes the differences between Chromium needles (green shank), Tungstone needles, regular needles, and 'red shank home recording needle' as well as 'orange shank long playing needle'. Robert -- would you be willing to do that?? > On Apr 26, 2006, at 2:16 AM, Robert Wright wrote: > > > Many of you know my area of interest is technical oddities -- odd > > > sized > > discs, puzzle records, failed experiments with format, > > inside-out/vertical/universal cut, and especially early attempts > at > > long > > play discs. > > _______________________________________________ Phono-L mailing list [email protected] Phono-L Archive http://phono-l.oldcrank.org/archive/ Support Phono-L http://www.cafepress.com/oldcrank
