Return to Tinfoil Resource Center index
Return to Tinfoil Resource Center index
Commercial brown wax cylinders date from 1889 to around 1904 Unlabelled black wax 1902 to 1904 Labelled black wax 1904 to 1912 (see Gallery of Two-Minute Wax Cylinders).
The following selections provide more detailed information on wax cylinder dating:
Summary table for dating cylinders by cylinder type and playback speed (revolutions per minute - RPMs):
For Edison two-minute wax cylinders: If the cylinder is The dates could be ================== ================== Brown wax (120-rpm) 1897 to 1898 (varies) Brown wax (125-rpm) Late-1898 to 1900 (varies) Brown wax (144-rpm) 1900 to July 1902 Unlabelled black wax Mid-1902 to July 1904 Labelled black wax (with hand-etched tag under selection #) August 1904 to 1908* Labelled black wax (with stamped tag after "PAT'D" markings) 1908 to September 1912** Note regarding "tags" on Edison black wax cylinders:
For Columbia and other two-minute wax cylinders: If the cylinder is The dates could be ================== ================== Brown wax (120-rpm) 1890 to 1900 Brown wax (125-rpm) 1899 to 1900 (varies) Brown wax (140-rpm) 1900 to mid-1902 Brown wax (185-rpm) 1901 to 1902 Brown wax (160-rpm) Mid-1902 to July 1904 Unlabelled black wax Mid-1902 to 1904 Labelled black wax 1904 to 1909
Dating wax cylinders by their selection number:
A basic dating table for Edison two-minute wax records
Summarized from Allen Koenigsberg's Edison Cylinder Records, 1889-1912):
Cyl selection # Date Cyl selection # Date
1 - 7403 1897 to 1899 9170 - 9433 1906
7404 - 7650 1900 9434 - 9721 1907
7651 - 7999 1901 9722 - 10031 1908
8000 - 8281 1902 10032 - 10276 1909
8282 - 8573 1903 10277 - 10455 1910
8574 - 8855 1904 10456 - 10530 1911
8856 - 9169 1905 10531 - 10575 through September 1912
NB: Edison cylinders date before mid-1902 if brown wax and
afterwards if black wax. Many brown wax titles were reissued after
1902 as black wax often using the same selection number.
A basic dating for Columbia two-minute wax records
Taken from Duane Deakins' Cylinder Records):
Cyl selection # Date
501 - 31502 1898 to 1901
31503 - 31705 1901 to March 1902
31706 - 32053 April 1902 to January 1903
32054 - 32574 Feb 1903 to October 1904
32575 - 32949 Nov 1904 to June 1906
NB: Columbia cylinders date before July-1904 if brown wax,
after 1902 if black wax. Many brown wax titles were reissued after 1902
as black wax.
Dating early brown wax cylinders:
Looks
Markings
Sound quality
From about 1893 to 1902, most major record producers used a pantographic duplicating system. The resulting copies would generally have a louder and somewhat "brasher" sound as compared to tube copies.
From around 1898 to 1902, both Edison and Columbia records used molded master records to pantograph from. This produced a consistently higher quality copy. Thus these brown wax records are typically loud, but still somewhat brash sounding.
Playback speed (revolutions per minute - RPMs)
Announcement
Return to Tinfoil Resource Center index
There are a couple of tricks to help determine the proper playback speed. One approach that works with vocal recordings is to find a known-speed recording by the same performer, and match it to the unknown brown wax recording. Black wax records, always 160-RPM, are great for providing this benchmark. Another approach is to identify the key a piece of music is written in, and use that as a reference.
Of course, if all else fails, adjust the speed until it sounds "right"!
Return to Tinfoil Resource Center index
See also Note to early recordings collectors which discusses how you can get your brown wax cylinder recordings digitally transferred to CDs.
Return to Tinfoil Resource Center index
The stylus is changeable, but for most 2-minute cylinders I use a hand-ground stylus that is slightly narrower than the groove standard. I also occasionally use a stylus fitted with a standard 2-minute sapphire (best for older shallow groove brown wax records). I also have hand-ground styli for other cylinder types including 4-minute wax, celluloids, and Blue Amberols. In fact, with a simple stylus change, I have used this system on and received excellent results with vertical cut disks such as Edison diamond disks, Pathe, Phono-cut, et al. Using a lateral pickup, I also work with occasionally with Berliner and other early disk recordings.
My approach is different from most, which tend to place a pickup in place of a cylinder player's reproducer. My approach of an exaggerated tone arm tracks much better and yields a cleaner sound better tracking yields less groove wall noise, and a detached tone arm greatly reduces machine noise.
The shielded monaural signal is sampled directly, without amplification or filtering, and digitized at 44kHz using 16-bit samples. A typical 2-minute cylinder takes up around 13Mb of disk storage.
If a cylinder is badly out-of-round, or otherwise a problem-child, it can be spun at less than normal RPMs in order to get the signal, then digitally re-sampled to the correct playback speed.
The recordings are made "flat" with no filtering, and have greater clarity and articulation than any other recordings of wax cylinders I've heard.
As all my preservation work is digitally mastered, I store all my masters on CD-recordables. CD-R technology has matured, with 30-75 year shelf-life estimates. Being optical, CD-Rs are not vulnerable to EM radiation, etc. Plus is it does not suffer some of the other drawbacks of DATs and other tape-based media (print-through, tape damage/breakage, etc.). Even if one doesn't buy the shelf life figures, a clincher for me is that I can make any number of perfect master copies (in effect, another master) as I wish and they do not have to be in CD format. Thus, when something better comes along in 5 or 10 years, I can transfer my masters to that technology without loss.
Return to Tinfoil Resource Center index
Wire recordings, Gray autodisk, Dictabelts, tapes, disks, and cylinders
You might contact the
Library of Congress, Division of Recorded Sound, Special Formats Division (202/707-5508, or 202/707-9146).
They are experts in transferring and preserving odd format sound recordings,
and may offer sound transferral services or know those who can.
Return to Tinfoil Resource Center index