nico:ad:ad639
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| "The AD639 is a general trigonometric function generator where the output is a scaled ratio of two sines, where each sine has tunable parameters. The package on this one was another ceramic case with a gold cover that was held on by solder. Heating the case and pushing over the solder revealed a very clean chip with a seemingly small number of transistors. No markings were found on the chip other than the model number and Analog’s logo." | "The AD639 is a general trigonometric function generator where the output is a scaled ratio of two sines, where each sine has tunable parameters. The package on this one was another ceramic case with a gold cover that was held on by solder. Heating the case and pushing over the solder revealed a very clean chip with a seemingly small number of transistors. No markings were found on the chip other than the model number and Analog’s logo." | ||
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| + | Source: http:// | ||
| ====== Package ====== | ====== Package ====== | ||
nico/ad/ad639.1513107924.txt.gz · Last modified: 2017/12/12 19:45 by mcmaster