I've described the theoretical background and measurements on my
LTZ1000 references (2 on my own, one identical of another volt-nut) parts #1
-#6, starting here:

http://www.eevblog.com/forum/projects/ultra-precision-reference-ltz1000/165/

Those 0.1% wirewound resistors, are available from stock, they are called
"econistors", 8G16, cost around 8$/? each and are distributed via a british
company

http://www.rhopointcomponents.com/components/resistors/precision-through-hole.html

regards Frank


Frank,
Is there a drawing or scan for the PCB for this circuit? Are the boards or completed assemblies available for purchase? The links to the taobao.com site in the blog are obviously dead; they lead to a department store type retail site.

Dave M

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