2009-02-05 |
The update of the home page from 2008-03-17 somehow got lost; reinstated here. Link to "Studer List" removed -- defunct. |
2009-01-30 |
Major update of pubshed |
2008-12-23 |
Updated "Azimuth in a Magnetic Tape Recorder" |
2008-12-14 |
Added alternate email address mrltapes@gmail.com for anyone having difficulty contacting us at the flash.net address. |
2008-03-17 |
Price increase from 2008-04-01, PubPL2008 ; available on ATR Magnetics Tape; international dealers updated; prepay removed -- nobody does it |
2008-01-13 |
Minor cleanup; added jm biography link. |
2007-12-26 | Added explanation of MRL Catalog Numbers to the "List of Publications" |
2007-09-10 |
Bibliography of papers by J. McKnight now includes links to PDF files of many of the papers. |
2006-11-05 |
Ref to prices changed to
"pubpl2006.pdf" |
2006-10-24 |
Price increase, 10 $ per
item from 2006-11-03; new address & fone/fax. |
2006-08-11 |
Added link to Jack Endino's measurements
of "head bumps" |
2006-05-05 |
Added para "Delivery";
update "More Information..." |
2006-05-02 |
Added "Go To" at top;
reworded a few places to clarify; added "About MRL" papers by Hodges
and Kostelnik. |
2005-09-20 |
Added links to McKnight
and Morrison
papers from
Ampex days.. |
2005-07-01 |
All publications updated
to new prices, dated 2005-07-01, with 15 % increase. Major revision of
Pub 203 (Polarity). |
2005-06-07 |
PL2005 linked to top
banner |
2005-06-06 |
Price increase for
2005-07-01 announced |
2005-02-18 |
Some minor editing; added
new Pub101SM,
"Multifrequency Reproducer
Calibration Tapes for 15 in/s with MRL 'Studio Master' Equalization,
for Open-Reel Applications"; minor editing to "Tape
Recording Equalization Fundamentals and 15 in/s Equalizations" to
reference Pub101SM. |
2004-05-27 |
Revised pubame
a few days ago; major revision of Fundamentals
and Equalizations for 15 in/s . |
2004-05-10 |
Added technical papers "
Master-tape Equalization
Revisited" , and Tape
Information Table. |
2004-05-02 |
Corrected link for Speed;
re-uploaded Demagnetization |
2004-03-24 |
Added Biasing in Magnetic Tape Recording |
2004-03-23 |
Added updated Pub AME, Multifrequency Cal Tapes With Ampex Master Equalization; with tech references on AME |
2004-02-21 |
Link for "Low-Frequency
Response Calibration of a Multitrack Magnetic Tape Recording and
Reproducing System" corrected |
2004-02-11 |
Added technical papers "Flux
and Flux-Frequency Measurements and Standardization in Magnetic
Recording" and "Tape
Flux Measurement Revisited "
. |
2004-02-10 |
Added link to catalog of TEAC Cassette
Calibration Tapes to cassvend.html |
2004-02-06 |
International
Dealers List updated |
2004-01-19 |
New prices posted for all
Publications at 21:50 pt. |
2003-12-22 |
Added AME
(Ampex Master Equalization). Replaced with Pub
AME on 2004-03-23 |
2003-12-19 |
Added PubSMS3, Two-Speed Short Calibration Tapes: The "version" numbers (second three digits only) of all of the 2-speed tapes that we have programmed. Everything in Pub SMS2a, and many more. |
2003-12-16 |
2004-01-19
price
list , Pub101,
and PubSMS2a,
posted. -2004 posted this date,
deleted on 2004-01-19 Ref to "2004" deleted 2004-01-23 |
2003-12-11 |
Notice of price increase added |
2003-12-03 |
Added reference to "sticky-shed"
to Technical Papers; added reference to The Studer List . |
2003-11-03 |
Rearranged some of the
text. |
2003-09-03 |
Added "Which Calibration Tape Should I Buy? An Elementary Guide" |
2003-09-03 |
Updated "USA
Dealer List" |
2003-08-10 |
Added "Low
Frequency Response Calibration..." to technical
papers available. |
2003-06-13 | International Dealer List updated; web URLs added where available. |
2003-05-19 | Replaced "Tape Recording Equalization -- Table of Standard Responses from IEC Standard 60094-1, Fig 1" with "Standard Tape Flux vs Frequency (IEC Standard, table of values, and program to calculate differences)" |
2003-01-29 | Added "Pub 673" (1 kHz, 10 kHz, 16 kHz, 100 Hz tones); corrected typo & reformatted "Demagnetizing..." |
2003-01-10 | "Two-Speed Short Calibration Tapes" Pub SMS2 replaced by re-organized (easier to figure out) Pub SMS2a; AES Journal papers now available as pdf files from MRL; "More Information..." links added. |
2002-12-02 | US dealer list updated |
2002-09-09 | Repair "back" link in "calibration tapes"; changed reference |
2002-04-16 | Updated CA sales tax rate to 7.25 / 8.25 %; added getting papers from the AES by email; Pub 101 minor update of 2002-02-28 |
2002-02-28 | International dealer list updated |
2001-10-24 | Minor text edit; Choo&U V5.6 replaced with V5.7 (minor edit) |
2001-08-02 | Minor text edit; turned this "update" table end-for-end |
2001-07-31 | Minor text update in "PubCHROM" |
2001-07-03 | Add link to "Scrape Flutter and Tape Compliance Bibliography" |
2001-06-12 | USA Dealer List updated, this date |
2001-05-30 | Add links to "Tape Recording Equalization --
Table of Standard Responses from IEC Standard 60094-1, Fig 1" and
"Tape Recording Equalization -- Historical Table of Transition Frequencies / Time Constants from 1969 SMPTE paper" |
2001-05-02 | Errors in some links corrected |
2001-04-20 | More minor text clarifications |
2001-04-05 | Numerous minor text clarifications. |
2001-01-12 | CA state tax rate changed to 7 %; "Speed..." and "Proposed Mastering Equalization..." available online |
2000-10-16 | "Price Increase" text deleted; description of "Publications Order Form" reworded. |
2000-10-09 | New prices posted for all publications; pdf file sizes corrected or Orderlit; "Price Increase" text updated. |
2000-10-05 | New prices posted for Pub PL2000, Pub 101, Pub Chrom, Pub SMS1, and Pub SMS2 |
2000-09-07 | Price increase corrected to "about 12 %" |
2000-08-22 | Added "Price Increase" |
2000-06-19 | Add link to "Field Strength for Partial Erasure..." |
2000-04-13 | Add Warranty Return Form to Publication Order Form |
2000-04-05 | Add reference to getting "Proposed Equalization for 15 in/s Studio Master Recording...", & some more cleanup |
2000-04-04 | Reorganized a little; add tech paper "Azimuth in Magnetic Tape Recording"; unify two papers on equalization |
2000-03-07 | Add reference to getting "Speed, Pitch, and Timing..." reprint. |
2000-03-06 | Update Choo&U: Ver 5.6, 2000-02-29 |
1999-09-13 | Update Pub 313: Graticule image added |
1999-09-08 | Added technical paper "Head Height Alignment Methods" |
1999-08-31 | Update Pub 203: add reprint of "Polarity Calibration Tape (Issue 2)", from AES Journal |
1999-05-11 | Update Cassette Tape info; add tech papers on equalization |
1999-01-26 | Update PubPL95, "Price List" to show that it is still current; update $trans, "International Monetary Transfers" to show that we now accept credit cards |
1998-12-08 | Updated Pub 203, "Polarity Calibration Tapes" |
1998-08-19 | Added technical paper "Is My Calibration Tape Still Accurate?" |
1998-06-16 | Minor update to Choosing & Using ..., now Ver. 5.5 |
1998-05-07: | USA Dealers updated; added International Dealers, Bibliography of technical papers by J. McKnight, and technical paper "Demagnetizing a Tape Recorder" |
1998-02-26 | Ordering information added |
1998-02-23: | Originally posted |