[sdiy] DIP LM13700 discontinuation

[mark verbos]

But Trent Reznor said the OberMoog sounds WAY better than the OBMX!?

:)

Mark




> On May 28, 2021, at 6:29 PM, Michael E Caloroso <mec.forumreader at gmail.com> wrote:
> 
> The reason why the TLE2062 was used in the OBMx instead of the Buchla
> preferred TL07x/06x is before Don was brought on board, Gibson CEO
> Henry J stockpiled parts to build production OBMx units before a
> working prototype was even completed.  You NEVER do that.  The
> pre-Buchla prototype was never satisfactory, Gibson was paying
> expensive warehouse costs for these parts that couldn't be used, and
> the value of these components were dropping like a rock.  So when
> Buchla was brought in, it was under the condition that the purchased
> components had to be used wherever possible.
> 
> MC
> 
> On 5/28/21, mark verbos via Synth-diy <synth-diy at synth-diy.org> wrote:
>> 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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>> 
>> 
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