On 7/18/2016 1:43 PM, Paul T. Jackson wrote: > Anyone have an idea here? Contact Carla directly. > Ahhhh, the joys of two lists. I already posted this to the ARSCLIB list: > Hi, Carla, > > The reference I have used for years is: > > www.mrltapes.com/field-strength-for-partial-erasure.pdf > > I bought a one-piece 3-axis meter for about $150 from these folks about a decade and a half ago. > > http://www.lessemf.com/gauss.html > > This looks like a good choice at $150 > > XYZ Axis EMF Tester (Cat. #A194) > > However, the unit I have I think goes out to higher harmonics which might be interesting with large three-phase power installations, so another choice on the same page for $269, but it may be overly sensitive and not be able to measure higher strength fields discussed in the paper. > > 3-Axis Backlight Gaussmeter (Cat. #A107) > > For $300 it looks as if this might be closest to what I had and found most useful. > > Switchable 1:3 Axis Gaussmeter (Cat. #A153) > > Though for $200 you can get this: > > Datalogging 3-Axis Gaussmeter w/ PC (Cat. #A494) > > Cheers, > > Richard > > -- Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada 647 479 2800 http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.