15 Mar
2017
15 Mar
'17
10:01 a.m.
I bought an AlphaLabs GM-2 Gaussmeter for another project, and measured the AC magnetic
field strength touching these devices yesterday, since I really didn't have any idea
beyond
order of magnitude what they might be
Handheld tape head demagnetizer: 40 Gauss
GC Elec 9317 CRT degausing coil: 70 Gauss
Audiolab TD-3 desktop bulk eraser: 1000 Gauss
Inmac 7180 or
RS 44-233A handheld bulk tape erasers: 2000 Gauss
also the DC field of a 1/4" button super magnet like on the
backs of clip on badges is about 3000 Gauss