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<div class="moz-cite-prefix">On 11/15/17 12:17 PM, Donald Tillman
wrote:<br>
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<div class="">On Nov 15, 2017, at 11:49 AM, bbob <<a
href="mailto:fluxmonk@gmail.com" class=""
moz-do-not-send="true">fluxmonk@gmail.com</a>> wrote:</div>
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<div dir="ltr" class="">anybody know the origins or first
publication of the 40106 astable multivibrator circuit?
i've found it in a 1992 intersil data sheet, but i think
it's been around longer than that....</div>
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Oh good grief, that's old as the hills. :-)</div>
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<div>It was probably in the data sheet for the original 40106.</div>
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<div>But before that, it was probably in the data sheet for the
first CMOS Schmitt Trigger.</div>
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<div>And before that, astable multivibrators were featured in the
very first CMOS application notes.</div>
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<div>Check out the 1979 RCA COS/MOS manual; it has a whole chapter
on multivibrators.</div>
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<div> <a
href="https://archive.org/details/RcaCosmosIntegratedCircuitsManual"
class="" moz-do-not-send="true">https://archive.org/details/RcaCosmosIntegratedCircuitsManual</a></div>
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<div> -- Don</div>
<div><span style="font-family: Monaco; font-size: 11px; orphans:
2; widows: 2;" class="">--</span></div>
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<div class=""><font class="" face="Monaco"><span
style="font-size: 11px;" class="">Donald
Tillman, </span></font><span
style="font-size: 11px; font-family:
Monaco;" class="">Palo Alto, California</span></div>
<div class=""><span style="font-size: 11px;
font-family: Monaco;" class=""><a
href="http://www.till.com" class=""
moz-do-not-send="true">http://www.till.com</a></span></div>
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Gotta love those old manuals and what was in them.<br>
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Also go look in any of the old combo organs - they're packed full of
*transistor* based astable multivibrators.<br>
<br>
-Dave<font face="Monaco"><br>
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