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AM503: Difference between revisions
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There were some innovations that were incorporated in this design: | There were some innovations that were incorporated in this design: | ||
The [[cam switch]] with replaceable laser trimmed attenuator resistors, a differential pair plus | The [[cam switch]] with replaceable laser trimmed attenuator resistors, and a simple IC with a differential pair plus 1 GHz Gilbert cell (actually developed by Howard Jones in 1963). | ||
This IC, [[155-0078-xx]], was designed in Lab Scopes for the 485. | This IC, [[155-0078-xx]], was designed in Lab Scopes for the 485. | ||
(At the same time designers were teaching amplifier technology internally and at the University of Portland as part of Tek’s excellent education and training program.) | (At the same time designers were teaching amplifier technology internally and at the University of Portland as part of Tek’s excellent education and training program.) | ||