Hello Jan,
some shameless self-plugging:
My Website has a ZIP with the eagle schematic and layout of one of the
Circuits discussed on this eevblog thread: I am the babysitter.
http://dg3hda.primeintrag.org/doku.php?id=ltz1000a
Hendrik
Am 11.12.2013 20:43, schrieb Jan Fredriksson:
Hi list,
None of the resistors actually need to be high presision. They need to have
the best possible stability, time, temperature wise. But actual resistance
values are not critical.
It would require a longer discussion to sort out all the why /how to select
resistor values...
Den 11 dec 2013 18:00 skrev <[email protected]>:
(...)
1 reply-type=original
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
(...)
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