On 8 Jun 2015 15:41:54 -0700, Winfield Hill
wrote:
Winfield Hill wrote...
John Larkin wrote...
Jim Thompson wrote:
;-) CK722 anyone ?:-}
https://dl.dropboxusercontent.com/u/...s/Ck722-0A.JPG
https://dl.dropboxusercontent.com/u/...s/Ck722-2A.JPG
Used to cost a week's allowance.
Here's the 1952 datasheet, Raytheon,
in Newton, MA, my old stomping ground.
https://www.dropbox.com/s/gtly97ud6j...952_1st-pg.gif
Yep, I double-checked, that was 1952.
While I was still in high school my father became a Raytheon
wholesaler. I first saw that little blue blob ~1955 and it caused me
to switch my education aims from architecture to electronics.
Previously, though raised in a radio & TV repair shop, and I built
several toob amplifiers, toobs as a point of study turned me off.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at
http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.