7904: Difference between revisions
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The 7904 is a 500MHz mainframe with four bays. It accepts two 7000-series vertical plug-ins and two 7000-series horizontal plug-ins. | [[Image:7904_block.gif|thumb|200px|right|7904 block diagram]] | ||
The 7904 has a many modes of operation. One mode is called "Independent-Pairs Display" in the manual, where the input to the left vertical plug-in is displayed using the B horizontal timebase plug-in, and the input to the right vertical plug-in is displayed using the A horizontal timebase plug-in. This resembles the trace-slaving "ALT" mode that is produced by a 1A4 in a 547. Many other modes are available. It is possible to put vertical plug-ins in the horizontal slots for X-Y operation. It is even possible to put a horizontal plug-in in one of the vertical slots to produce a raster scan. The CRT has distributed vertical deflection plates. | The 7904 is a 500MHz 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]]. | ||
Performance is largely determined by the plug-ins. The 7904 makes extensive use of custom integrated circuits and hybrid circuits. The signal path is completely differential and all of the internal wiring is 50-ohm coax. | |||
The 7904 has a many modes of operation. One mode is called "Independent-Pairs Display" in the manual, where the input to the left vertical plug-in is displayed using the B horizontal timebase plug-in, and the input to the right vertical plug-in is displayed using the A horizontal timebase plug-in. This resembles the trace-slaving "ALT" mode that is produced by a 1A4 in a 547. Many other modes are available. It is possible to put vertical plug-ins in the horizontal slots for X-Y operation. It is even possible to put a horizontal plug-in in one of the vertical slots to produce a raster scan. The CRT has distributed vertical deflection plates. | |||
==Years made== | |||
1974 — 1992 | |||
==Specifications== | |||
* bandwidth: 500 MHz | |||
* acceleration voltage: 24 kV | |||
==Manuals== | |||
* [http://bama.edebris.com/download/tek/7904/Tektronix_7904_Service_May1983.pdf Tektronix 7904 Manual (PDF)] | * [http://bama.edebris.com/download/tek/7904/Tektronix_7904_Service_May1983.pdf Tektronix 7904 Manual (PDF)] | ||
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* [http://w140.com/Tek_7904_OCRed_by_Tabalabs.pdf Tektronix 7904 Manual (Shannon Hill PDF with OCR)] | * [http://w140.com/Tek_7904_OCRed_by_Tabalabs.pdf Tektronix 7904 Manual (Shannon Hill PDF with OCR)] | ||
* [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)] | ||
==Links== | |||
* http://amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/7904.htm | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Image:old7904.JPG|7904 w Plugin | Image:old7904.JPG|7904 w Plugin | ||
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Image:7904 interface 2.jpg|Plug-in interface board rear | Image:7904 interface 2.jpg|Plug-in interface board rear | ||
</gallery> | </gallery> | ||
[[Category:Specifications needed]] | |||
__NOTOC__ | |||
Revision as of 10:26, 5 May 2014
The 7904 is a 500MHz mainframe with four bays. It accepts two 7000-series vertical plug-ins and two 7000-series horizontal plug-ins.
Performance is largely determined by the plug-ins. The 7904 makes extensive use of custom integrated circuits and hybrid circuits. The signal path is completely differential and all of the internal wiring is 50-ohm coax.
The 7904 has a many modes of operation. One mode is called "Independent-Pairs Display" in the manual, where the input to the left vertical plug-in is displayed using the B horizontal timebase plug-in, and the input to the right vertical plug-in is displayed using the A horizontal timebase plug-in. This resembles the trace-slaving "ALT" mode that is produced by a 1A4 in a 547. Many other modes are available. It is possible to put vertical plug-ins in the horizontal slots for X-Y operation. It is even possible to put a horizontal plug-in in one of the vertical slots to produce a raster scan. The CRT has distributed vertical deflection plates.
Years made
1974 — 1992
Specifications
- bandwidth: 500 MHz
- acceleration voltage: 24 kV
Manuals
- Tektronix 7904 Manual (PDF)
- Tektronix 7904A Manual (DjVu)
- Tektronix 7904A Manual (Shannon Hill PDF with OCR)
- Tektronix 7904 Manual (Shannon Hill PDF with OCR)
- Servicing the 7904 High-Efficiency Power Supply (PDF)
Links
Pictures
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7904 w Plugin
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7904A
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Plug-in interface board front
-
Plug-in interface board rear
