Too_Many_Tools wrote:
I have a well stocked test bench at home containing a range of analog,
digital and RF test equipment as I am sure most of you also do.

Well the question I have is how do you handle the calibration of your
equipment? What do you use for calibration standards for resistance,
voltage, current and frequency?

Links to recommended circuits, pictures and sources would be
appreciated.

Since this is a need for anyone who has test equipment, I hope to see
a good discussion on this subject.

Thanks

TMT

You left many things unsaid: (a) Traceable to NBS/NTIS or not; (b) if
not, how many reliable digits; (c) at what cost.
You can make a 5V "standard" that any loading will not damage with
error better than 0.5mV and runs for at least 6 months with no
observable change - and the cost is only a few dollars (uses
off-the-shelf parts).
You can buy thru DigiKey, resistors rated at 0.05% and at 0.1% -
rather decent as references.
You can buy a Fluke bench meter rated at 6.5 digits and even pay a
bit more for traceability.