Gainclone Measurement Suggestions?

[lgreen]

Despite the vast numbers of GC's built, I have not seen measurements posted here, wonder why that is? Having fininshed my Gainclone, I am preparing to do some measurements. Anyway, what are everyone's ideas of measurements they would like to see? I have only a scope, FG and DMM, so looks like THD is out. Please post your suggestions other than the obvious (power into various loads, frequency response). If you think of something unique, please post how to accomplish this with the above equipment!

[peranders]

Here are some measurements of LM3886.

http://w1.331.comhem.se/~u33113170/gainclone/test.htm

[adx]

Originally posted by peranders
Here are some measurements of LM3886.

http://w1.331.comhem.se/~u33113170/gainclone/test.htm

Cool. I hadn't seen those - it gives a really good idea of what's going on with the supply rails and stuff. Makes me want to buy a colour scope too.

For distortion, I've done some measurements in an article on my website:
http://www.adx.co.nz/techinfo/audio/gainclone1.htm

And the THD graphs National gives are fairly representative of nearly any design that uses these chips...
http://www.national.com/ds.cgi/LM/LM3875.pdf
(but THD has next to nothing to do with sound so you should mostly ignore it)