Seeking Proposals for Capacitor, Inductor or Resistor Projects

Hi Randall,

I'm planning on making a single-reference resistor standard, but I've already purchased the bits and pieces.It uses a single precision resistor -  I thought it would be useful to have around the lab to do a spot-check from time to time with a known value, for circuits under test.

Other cool ideas could be:

Temperature measurement or other measurement devices (using say thermistors)

Filter and oscillator ideas (all could use a combination of inductors and capacitors)

Current measurement projects - I'm writing up a blog post on that today by coincidence, although I didn't focus on the resistor, but I needed a particular 4-terminal one for obtaining a voltage proportional to the current passing through it.

Audio projects - a decent microphone preamp would be handy - requires nice capacitors

Signal generation - jc2048 demonstrated this with many resistors

Hi Randall,

I'm planning on making a single-reference resistor standard, but I've already purchased the bits and pieces.It uses a single precision resistor -  I thought it would be useful to have around the lab to do a spot-check from time to time with a known value, for circuits under test.

Other cool ideas could be:

Temperature measurement or other measurement devices (using say thermistors)

Filter and oscillator ideas (all could use a combination of inductors and capacitors)

Current measurement projects - I'm writing up a blog post on that today by coincidence, although I didn't focus on the resistor, but I needed a particular 4-terminal one for obtaining a voltage proportional to the current passing through it.

Audio projects - a decent microphone preamp would be handy - requires nice capacitors

Signal generation - jc2048 demonstrated this with many resistors

Wow! Lots of ideas.

If you had the time, I'd like to see the build on the resistor standard.

Randall

Challenge accepted : )

Just as a kind of precursor to the resistance standard project, I wrote up a 4-wire measurement project here:

Building Kelvin (4-Wire) Test Leads

It turns out, making a reference resistor box is quite involved.. I spent ages in the workshop over the weekend : )

Anyway, meanwhile there is a capacitor ESR blog post as a spin-off from the BA6010 RoadTest here:

Measuring Capacitor Characteristics