AES7 Test Materials
Approved Suppliers
The following are suppliers of test materials according to annex 7 of AES7, Methods of Measurement of Recorded Flux of Magnetic Sound Records at Medium Wavelengths.
IMPORTANT NOTE: AES does not endorse any supplier
or guarantee performance of its products.
The calibrated high-efficiency head described in 5.2 and 5.3 is available from:
Magnetic Reference Laboratories
229 Polaris Ave Ste 4
Mountain View CA 94043
email: mrltapes@comcast.net
web: www.mrltapes.com
The carbonyl iron suspensions cited in 4.2 are available as “magview developer” from:
Sprague Magnetics, Inc.
12806 Bradley Ave.
Sylmar, CA 91342 USA
email: smiav@sprague-magnetics.com
The ferrofluids for magnetic pattern recognition cited in 4.2 are available from:
Ferrofluidics Corp.
Fluid Products Group
40 Simon St
Nashua, NH 030061-2009 USA
email: info@fero.com
