[sdiy] DIP LM13700 discontinuation

[mark verbos]

So weird Brian. 

I was talking about these yesterday afternoon. I have never heard them mentioned before now. TLE2062 is used a bunch in the OB-MX, which of course was designed for Gibson/Oberheim by Don Buchla using many parts they already had(or so the story goes). Since Don never used anything besides TL082 and TL062 starting in about 1975 (OK an LM301 here and there), I was trying to figure out why he used those here (They are 10x the price after all). It could be that this was not on his dime, so he used what he really wanted to. It could be that they already had them. It could be that he always wanted to use them, and it was the first chance he got (it was 1994). Anyway, it seems that with them he got the low power benefit of the TL062 and the higher slew rate of the TL082 all in one overpriced package. There are 20 per voice card. With 6 cards in there, the current would start to add up…

Mark







> On May 27, 2021, at 9:47 PM, Brian Willoughby <brianw at audiobanshee.com> wrote:
> 
> I consider the Excalibur series of op-amps to be the cream of the crop. I assume they're just modern versions of the TL082 and TL072, et cetera.
> 
> TLE2082
> TLE2072
> 
> Plus the usual single, dual, quad options, through-hole and SMD.
> 
> Of course, there are 10,000 op-amps to choose from, and it always depends upon what you're hoping to accomplish.
> 
> Brian
> 
> 
> On May 26, 2021, at 10:51, Benjamin Tremblay via Synth-diy <synth-diy at synth-diy.org> wrote:
>> So, it’s just a cream-of-the-crop bifet op amp. Nice. For me who does not even use tempco resistors or balanced outputs, probably too nice. It’s the pearl and I am the swine.
>> 
>> Benjamin Tremblay
> 
> 
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