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7704A: Difference between revisions
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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. | 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. | ||
According to [[Media:Tekscope_1972_V4_N3_May_1972.pdf|Tekscope May 1972]], [[Luis Navarro]] was responsible for the electrical part of the project. [[Bill Lukens]] designed the low- and high-voltage power supplies, [[Jim Cavoretto]] did the vertical amplifier, and [[Bill Markwart]] the CRT readout. [[Bob Shand]] was responsible for the mechanical design, with [[Dave Hoskins]] and [[Bill Gordon]] doing the A7704 Acquisition Unit, [[Phil Lloyd]] the D7704 Display Unit, and [[Dick Swanson]] and [[Larry Pearson]] the interconnect system. | According to [[Media:Tekscope_1972_V4_N3_May_1972.pdf|Tekscope May 1972]], <blockquote> | ||
[[Luis Navarro]] was responsible for the electrical part of the project. [[Bill Lukens]] designed the low- and high-voltage power supplies, [[Jim Cavoretto]] did the vertical amplifier, and [[Bill Markwart]] the CRT readout. [[Bob Shand]] was responsible for the mechanical design, with [[Dave Hoskins]] and [[Bill Gordon]] doing the A7704 Acquisition Unit, [[Phil Lloyd]] the D7704 Display Unit, and [[Dick Swanson]] and [[Larry Pearson]] the interconnect system. | |||
</blockquote> | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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}} | }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
* [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] | |||
* [https://m.youtube.com/watch?v=Hz-gF_XSj9w 7704A demo @ YouTube] | |||
* [https://www.youtube.com/watch?v=16QHePfnkHk Zenwizard Studios - Tektronix 7704A Calibration] | |||
{{Documents|Link=7704A}} | |||
==Internals== | ==Internals== | ||
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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. | 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. | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
Tek 7704a trace.jpg | 7704A displaying a trace | Tek 7704a trace.jpg | 7704A displaying a trace | ||