<div dir="ltr">Bitsavers has it from 1970.<br><div><br></div><div><a href="https://bitsavers.org/components/fairchild/_dataBooks/1970_Fairchild_Semiconductor_Integrated_Circuit_Data_Catalog.pdf">https://bitsavers.org/components/fairchild/_dataBooks/1970_Fairchild_Semiconductor_Integrated_Circuit_Data_Catalog.pdf</a></div><div><br></div><div>Highly recommend checking out their databook library.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Dec 2, 2022 at 10:26 PM Colin Hinz <<a href="mailto:music-lists@primus.ca">music-lists@primus.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
FWIW the long version is not in the 1970 databook.<br>
<br>
- Colin<br>
<br>
On Fri, 2 Dec 2022, Oren Leavitt via Synth-diy wrote:<br>
<br>
> I have a 1972 IC databook with the uA726 datasheet. I can make a scan of it <br>
> when I get home Sunday.<br>
><br>
> - Oren<br>
><br>
> On 12/2/22 3:49 PM, Tim Stinchcombe wrote:<br>
>> Hi list,<br>
>> I have been looking at the Fairchild uA726 datasheet that is widely<br>
>> available on the net, and it struck me that there isn't really much info on<br>
>> it about how to select the value of the resistor to use on pin 6 to set the<br>
>> temperature. Looking at the archives it is clear that this has been noticed<br>
>> before, but then I came across this message which indicates that there *is*<br>
>> likely an older datasheet with extra charts which are not to be found on <br>
>> the<br>
>> usual one:<br>
>> <a href="http://search.retrosynth.com/synth-diy/search/lookit.cgi?-v9902.413" rel="noreferrer" target="_blank">http://search.retrosynth.com/synth-diy/search/lookit.cgi?-v9902.413</a><br>
>> <br>
>> This reply to that post specifically mentions charts which apparently don't<br>
>> correspond to any on the usual datasheet found online:<br>
>> <a href="http://search.retrosynth.com/synth-diy/search/lookit.cgi?-v9902.419" rel="noreferrer" target="_blank">http://search.retrosynth.com/synth-diy/search/lookit.cgi?-v9902.419</a><br>
>> (Is Terry Michaels still around?)<br>
>> <br>
>> I found a large collection of old Fairchild databooks here:<br>
>> <a href="https://www.rsp-italy.it/Electronics/Databooks/Fairchild/index.htm" rel="noreferrer" target="_blank">https://www.rsp-italy.it/Electronics/Databooks/Fairchild/index.htm</a><br>
>> <br>
>> and searching through those only turns up the usual 'cut-down' version, the<br>
>> oldest being from 1973. Frustratingly the 1969 databook, which lists the<br>
>> uA726 in the contents as being in chapter *6*, only goes up to chapter 5, <br>
>> so<br>
>> this _might_ be a candidate for containing the older data..?<br>
>> <br>
>> Does anyone here have a really old databook with the uA726 in it which<br>
>> contains the 'missing data', or an older copy of the actual datasheet, <br>
>> which<br>
>> could be scanned and made available to the masses? (Or indeed is there one<br>
>> already out there that I have missed?) After a lot of searching around this<br>
>> afternoon and evening, it would be nice to 'plug' this apparent hole our<br>
>> collective uA726 knowledge.<br>
>> <br>
>> Thanks,<br>
>>      Tim<br>
>> __________________________________________________________<br>
>> Tim Stinchcombe<br>
>> <br>
>> Cheltenham, Glos, UK<br>
>> email: <a href="mailto:tim102@timstinchcombe.co.uk" target="_blank">tim102@timstinchcombe.co.uk</a><br>
>> <a href="http://www.timstinchcombe.co.uk" rel="noreferrer" target="_blank">www.timstinchcombe.co.uk</a><br>
>> <br>
>> <br>
>> <br>
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</blockquote></div>