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M777: Difference between revisions
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Because Portables had not figured out how to do a dc level shift or bandwidth limiting on a monolithic chip. | Because Portables had not figured out how to do a dc level shift or bandwidth limiting on a monolithic chip. | ||
Portables Division did need these capabilities although the requirement was not as essential as in the 11K series. | Portables Division did need these capabilities although the requirement was not as essential as in the 11K series. | ||
7K and 11K (which was intended to use most of the 7K plugin to mainframe interface for simplicity) signals came in at 0V at the front panel and exited the plugins at 0V (common mode) to the mainframe. | 7K and 11K (which was intended to use most of the | ||
[[7000_Series_plug-in_interface|7K plugin to mainframe interface]] for simplicity) signals came in at 0V at the front panel and exited the plugins at 0V (common mode) to the mainframe. | |||
With all NPN transistors, | With all NPN transistors, | ||
every stage ends up at a more positive voltage output than its input. | every stage ends up at a more positive voltage output than its input. | ||