Tom Fine: > Was Decca's 1950's microgroove vert-lat snip still another > approach or a smaller-stylus adaption of an earlier system? I consider it just another approach. Arthur Haddy, Decca studios chief technical director, has stated on numerous occasions that the DECCA cutterhead could make Stereo vinyl disks either 45/45 or vertical/lateral at the flick of a switch. The cutterhead stayed the same but the signals driving it was matrixed differently to either produce 45/45 or vertical/lateral when switching said switch. So in the end they had no problems at all to agree to the 45/45 system as a wordwide standard because of said switch. http://www.aes.org/aeshc/docs/jaes.obit/JAES_V38_5_PG413.pdf http://www.gramophone.net/Issue/Page/April%201990/163/734338/ARTHUR+CHARLES+ HADDY http://www.aes.org/e-lib/browse.cfm?elib=3317 The Coming of Stereo FOREWARD: The author, as Manager of Engineering RCA Victor Records, later as Chief Engineer, as a member of the Engineering Committee of the Record Industry Association (RIAA), and as Chairman of the Electronic Industries Association (EIA) Committee R 7 Phonograph Combinations, was heavily involved in the standardization of the stereophonic record. This is the story of his personal involvement. Author: Roys, H. E. JAES Volume 25 Issue 10/11 pp. 824-827; November 1977 Import into BibTeX Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES! This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers. Learn more about the AES E-Library E-Library Location: (CD aes3) /jrnl6877/1977/7532.pdf -- Best regards, Goran Finnberg The Mastering Room AB Goteborg Sweden E-mail: [log in to unmask] Learn from the mistakes of others, you can never live long enough to make them all yourself. - John Luther (\__/) (='.'=) (")_(") Smurfen:RIP