I might understand this incorrectly in that you're looking for that model, which might not be the case.One thing that strikes me, though, is that neither this program nor the free SIMetrix Intro (the one I used so far) has a model for the NE5532.
Trying to simulate an NE5532 I had trouble to get a correct Spice model for it. The only model I found was on the TI webpage for an NE5534 and is quite faulty: It has an unlimited bandwidth as the internal compensation capacitor is missing. For an NE5534 (uncompensated single version of NE5532, min. gain = 3) a capacitor of 3.5 pF must be added between nodes 6 and 7, and for an NE5532 (min. gain = 1) it takes 23.5 pF. For an NE5534 a new symbol with additional connections for external compensation must be created, for the NE5532 this is not the case. I prepared both models, you may download them here. Look for help in your simulator how to integrate the models - it takes some steps.
Yep, SIMetrix here as well. Using it at home & also at work when using some non-integrated circuits; easier to do it like that than to incorporate discretes etc into the 'company-simulator'.Do you also use SIMetrix? This Tina program looks nice too, but I haven't yet figured out how to install additional models.
You're right, the matching could be of use for some stuff. (Have to think about matched opamps a little more though - something probably seems to be too sensitive in the design when opamps need to be matched :roll: )You're a lucky guy; I've never even seen a NE5533. I suppose the two halves of the NE5533 are matched. Would be good for input stages, too.
But there may be some designs where good matching is not essential but maybe just nice to have.
Maybe I should mount them in a Beh. box, placing them visible behind the window i.s.o. the tubes Wink
I love those forgotten and transitory pieces of electronics. Like germanium transistrors, especially the later ones, when silicon had already taken over.
Don't get me started on those SQ-tubes in the (yet another) closet of a now retired colleague :wink: (no 'hot' types though)You have a cool job.
I'm not sure either, it certainly doesn't always makes sense. Prefixes like TZA..., TDA... are often a good general indication but then again there are exceptions.I sometimes wonder how they make up those model numbers...
That's a nice idea. Hmm, let's see, offset is 7mV max, over temp.If the offsets are okay, maybe it could be used as a DC servo in an all-NE55-preamp.
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