[sdiy] NJM072 vs TL072...

[Aaron Lanterman]

On Wed, 19 Apr 2006, Ryan Williams wrote:

> I use them sometimes and of course I don't notice the difference, but I 
> haven't tried measurments or anything. they are cheap. there is an njm13700 
> also and I've used that but never properly checked its performance.

I have a couple of teams doing an "OTA shootout" as their final project 
and gave each some NJM13700 and LM13700s and NJM13600s, along with 
CA3080s, a CA3280 (I don't have many of those), and some matched BJT pairs 
(the Japanese, SSMs, etc.) to do some roll-your-own. I deliberately left 
it somewhat vague as to how they should make their measurements just to 
see what they would come up with. I also told the teams not to talk to 
each other about details so we'd have two independent looks at the topic 
(although they are told to freely consult with students working with 
different projects).

If they FOLLOWED INSTRUCTIONS, they should be reading the list by now and 
would benefit from whatever thoughts people had.

If they didn't follow instructions - well, they'll know that I know as 
soon as I ask "why didn't you try that thing that such-and-such on the 
list suggested?" ;)

- Aaron

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