Any RMS Millivoltmeter recommendations?

[mtoc]

If someone is interested i can post the LTspice file of the AP Sys1 input structure.

Yes, we wanna see them. Including the AP2722, lastest 555 and the Prism dScope if possible.

 

[mtoc]

I have and look at the output on the AP SYS2722 and get you a nV/Rt Hz figure but can't do it until Tuesday as I am babysitting my grand-daughter. I only have the less expensive ADI parts, not the high end AD636, 637.

any updates, Sir?

 

[jackinnj]

any updates, Sir?

yes, she's now 4 years old and taking ballet lessons.

In the interim I have rebuilt an HP403B with a new amplifier. Actually tried a couple of amplifiers -- I just wired up EUVL's board for the G=1000 amplifier and will try this out.

http://www.diyaudio.com/forums/soli...1000-low-noise-measurement-amp-ikoflexer.html

There's an HP 3550B telecom test kit with HP403B, HP204C oscillator and HP335 patch panel going for a very reasonable price on Ebay.

 

[31697B]

An HP400F is a good work horse. 100 uV fs. Add low noise amp/filter if needed.


RNM