[sdiy] 40106 astable multivibrator - origins

[Donald Tillman]

> On Nov 15, 2017, at 11:49 AM, bbob <fluxmonk at gmail.com> wrote:
> 
> 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....

Oh good grief, that's old as the hills.  :-)

It was probably in the data sheet for the original 40106.

But before that, it was probably in the data sheet for the first CMOS Schmitt Trigger.

And before that, astable multivibrators were featured in the very first CMOS application notes.

Check out the 1979 RCA COS/MOS manual; it has a whole chapter on multivibrators.

    https://archive.org/details/RcaCosmosIntegratedCircuitsManual

  -- Don
--
Donald Tillman, Palo Alto, California
http://www.till.com



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