But the lathe cut into the acetate and not the aluminum/glass. (I was just imagining the process of actually using 100% glass as the seller's ad would lead one to consider.)
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of estott Sent: Saturday, December 02, 2006 8:50 PM To: Antique Phonograph List Subject: Re: [Phono-L] Glass record ----- Original Message ----- From: "Walt Sommers" <[email protected]> To: "'Antique Phonograph List'" <[email protected]> Sent: Saturday, December 02, 2006 7:21 PM Subject: RE: [Phono-L] Glass record Imagine mastering and producing a "glass" record in 1940....Exactly what would have been added to glass in order to maintain its strength when it is formed into grooves with sub-micron surfaces? This would shave a record duster down to the leather in a wink! What on earth would you use (short of a laser) as a stylus? I say soak it in a 50/50 mixture of denatured alcohol and acetone and then scrap the aluminum core for money (maybe 80 cents worth if you can get all the dissolved goo off). Sorry if I'm wrong, but it sounds like you might not be aware that recording and transcription discs were made on glass cores during the war, to save on aluminium. Given an acetate coating the glass blanks functioned just as well as the metal cored ones but they were heavier, thicker, and of course they broke. Now, in reality the government had plenty of aluminum in stock, but attention to scrimping and saving was good for morale and kept people's minds occupied. Eric Stott _______________________________________________ Phono-L mailing list [email protected] Phono-L Archive http://phono-l.oldcrank.org/archive/ Support Phono-L http://www.cafepress.com/oldcrank -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.15.3/562 - Release Date: 12/1/2006
