[sdiy] Discrete OTA (Barrie, xkcd)

[cheater00 .]

On Wed, Apr 9, 2014 at 9:49 PM, The Old Crow <oldcrow at oldcrows.net> wrote:
>   The flavor text on that xkcd has the author admitting he tried to work out
> the value of the resistor net.  In one of the late-70s issues of Popular
> Electronics, before it was ruined by the title change (to Computers and
> Electronics), Forrest Mims has a resistor lattice challenge that was very
> similar: it was an "infinite" lattice of 1-Ohm resistors, with an ohmmeter
> across one of them, which the challenge being to fill in the measured value.

He used that one in one of the comic books as well:

https://xkcd.com/356/

Cheers,
D.