7904: Difference between revisions

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* [http://w140.com/Tek_7904_Power_Supply.pdf Servicing the 7904 High-Efficiency Power Supply (PDF)]
* [http://w140.com/Tek_7904_Power_Supply.pdf Servicing the 7904 High-Efficiency Power Supply (PDF)]
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The '''Tektronix 7904''' is a 500 MHz, non-storage 7000-series oscilloscope mainframe with four bays.  It accepts two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]].  It was introduced in late 1971/early 1972 (Note 1).  The successor model 7904A was introduced in 1974. There is also a rack-mount version, the [[R7903]], albeit with only one horizontal bay.
The '''Tektronix 7904''' is a 500 MHz, non-storage 7000-series oscilloscope mainframe with four bays.  It accepts two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]].  It was introduced in late 1971/early 1972 (Note 1).  The successor model 7904A was introduced in 1984. There is also a rack-mount version, the [[R7903]], albeit with only one horizontal bay.


Performance is largely determined by the plug-ins.  The [[7A19]] vertical amplifier and [[7B92]] time base were introduced along with the 7904 to match the 500 MHz system bandwidth.   
Performance is largely determined by the plug-ins.  The [[7A19]] vertical amplifier and [[7B92]] time base were introduced along with the 7904 to match the 500 MHz system bandwidth.