7704A: Difference between revisions
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image=Tek 7704a trace.jpg | | image=Tek 7704a trace.jpg | | ||
caption=Tektronix 7704A | | caption=Tektronix 7704A | | ||
introduced= | introduced=1972 | | ||
discontinued=1987 | | discontinued=1987 | | ||
summary=200 MHz non-storage mainframe| | summary=200 MHz non-storage mainframe| | ||
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that takes two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] | that takes 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]]. | and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]]. | ||
Main designers were Luis Navarro (electrical) and Bob Shand (mechanical). | |||
The 7704A followed the [[7704]], improving bandwidth to 200 MHz (regular model, optimized | The 7704A followed the [[7704]] in 1972, improving bandwidth from 150 to 200 MHz (regular | ||
for transient response) or 250 MHz (option 9, bandwidth-optimized). | model, optimized for transient response) or 250 MHz (option 9, bandwidth-optimized). | ||
The '''R7704''' rack-mount version continued to be named just R7704. | The '''R7704''' rack-mount version continued to be named just R7704. | ||
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not to damage this connector when assembling or disassembling the units. | not to damage this connector when assembling or disassembling the units. | ||
An optional component, the [[P7001]] Processing Unit, can be added to a 7704A between the acquisition unit and the display unit. The Acquisition Unit of the 7704A, the P7001 Processor, and the Display Unit of the 7704A are connected by the Acquisition-Processor-Display (APD) Interface shown below. | An optional component, the [[P7001]] Processing Unit, can be added to a 7704A between the acquisition unit and the display unit. | ||
The Acquisition Unit of the 7704A, the P7001 Processor, and the Display Unit of the 7704A are connected by the Acquisition-Processor-Display (APD) Interface shown below. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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The vertical amplifier in the 7704A uses the [[155-0077-00]] hybrid. | The vertical amplifier in the 7704A uses the [[155-0077-00]] hybrid. | ||
In the 7704A, the [[7000 series readout system|readout board]] is located behind a back panel carrying two [[LEMO S-series connector]]s for probe power. This placement was intended to allow easy retrofitting of a readout board into an Option | In the 7704A, the [[7000 series readout system|readout board]] is located behind a back panel carrying two [[LEMO S-series connector]]s for probe power. This placement was intended to allow easy retrofitting of a readout board into an Option 1 instrument, however, the readout board is not a plug-in card − several cables have to be attached to the board. | ||
The 7704A SMPS uses a custom Tek chip ([[155-0067-02]]) to implement the control functions. | The 7704A SMPS uses a custom Tek chip ([[155-0067-02]]) to implement the control functions. For the initial start of the SMPS oscillator on power-up, early 7704As use a diac and later 7704As use a unijunction transistor in the starter circuit. | ||
==Links== | ==Links== | ||
* [[Media:Tekscope 1972 V4 N3 May 1972.pdf | Luis Navarro, Bob Shand: ''The 7704A-Extended Performance Plus Modularity.'' In TekScope Vol. 4 No. 3, May 1972]] | |||
* [http://amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/7704A.htm 7704A page at amplifier.cd (with repair report, German)] / [https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Famplifier.cd%2FTest_Equipment%2FTektronix%2FTektronix_7000_series_mainframe%2F7704A.htm translated] | * [http://amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/7704A.htm 7704A page at amplifier.cd (with repair report, German)] / [https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Famplifier.cd%2FTest_Equipment%2FTektronix%2FTektronix_7000_series_mainframe%2F7704A.htm translated] | ||
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<gallery> | <gallery> | ||
Tek 7704a trace.jpg | Tek 7704a trace.jpg | ||
Tek 7704A 1.jpg | Tek 7704A 1.jpg | 7704A | ||
USA Tektronix 7704A Front0.jpg | 7704A | USA Tektronix 7704A Front0.jpg | 7704A | ||
Tek-7704a-7D01.jpg | Tek-7704a-7D01.jpg | 7704A + [[7D01]] (from advertisement) | ||
Tek-7704a-manual.jpg | Tek-7704a-manual.jpg | 7704A picture from manual | ||
P7001 apd interconnect.jpg | APD Interface | P7001 apd interconnect.jpg | APD Interface | ||
Tek-7704A-Interconnect-1.jpg | Interconnect plug in normal position | Tek-7704A-Interconnect-1.jpg | Interconnect plug in normal position | ||
Tek-7704A-Interconnect-2.jpg | Interconnect plug on storage fixture | Tek-7704A-Interconnect-2.jpg | Interconnect plug on storage fixture | ||
Tek 7704a p7001 1.jpg | 7704A with [[P7001]] | Tek 7704a p7001 1.jpg | 7704A with [[P7001]] | ||
Tek 7704a rear1.jpg|7704A rear | Tek 7704a rear1.jpg | 7704A rear | ||
Tek 7704a rear2.jpg|7704A rear | Tek 7704a rear2.jpg | 7704A rear | ||
Tek 7704a rear3.jpg|7704A rear | Tek 7704a rear3.jpg | 7704A rear | ||
Tek 7704a rise 1ns per div.jpg|7704A Mod 9 rise time with 7A29 is 1.25 ns. Sweep was adjusted for exactly 1 ns / div using 1 GHz reference. | Tek 7704a rise 1ns per div.jpg | 7704A Mod 9 rise time with [[7A29]] is 1.25 ns. Sweep was adjusted for exactly 1 ns / div using 1 GHz reference. | ||
</gallery> | </gallery> | ||
[[Category:7000 series non-storage mainframes]] | [[Category:7000 series non-storage mainframes]] | ||