The invention of the Current Source, 1881
Apr. 7th, 2010 10:46 pm![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png)
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Analog circuit designers (I used to be one) will be amused to find that the current source was actually invented in the 19th century and sold as a quack health cure:

More quack equipment ads (one of my favorite topics) at http://www.magazineart.org/main.php/v/ads/healthandmedicine/quackequipment/ Don't miss the Trados Nose Shaper.
Mike
More quack equipment ads (one of my favorite topics) at http://www.magazineart.org/main.php/v/ads/healthandmedicine/quackequipment/ Don't miss the Trados Nose Shaper.
Mike
no subject
Date: 2010-04-08 02:04 pm (UTC)no subject
Date: 2010-04-09 12:32 am (UTC)