7704A: Difference between revisions
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image=Tek-7704a-manual.jpg| | image=Tek-7704a-manual.jpg| | ||
caption=7704A (manual)| | caption=7704A (manual)| | ||
years= | years=1973 — 1985| | ||
summary=200 MHz non-storage mainframe| | summary=200 MHz non-storage mainframe| | ||
manuals= | manuals= | ||
* [http://w140.com/tek-7704a.pdf Tektronix 7704A Manual (PDF)] | * [http://w140.com/tek-7704a.pdf Tektronix 7704A Manual (PDF)] | ||
}} | }} | ||
The Tektronix 7704A is a modular oscilloscope in the | The Tektronix 7704A is a modular oscilloscope in the [[7000-series_scopes|7000 series]] | ||
[[7000-series_scopes|7000 series]] that takes two | that takes two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] | ||
[[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]]. | ||
The 7704A followed the [[7704]], improving bandwidth to 200 MHz (regular model, optimized | |||
7704A followed the [[7704]], improving | for transient response) or 250 MHz (option 9, bandwidth-optimized). | ||
The 7704A has a special modular construction. At the bottom is the "acquisition unit", | The 7704A has a special modular construction. At the bottom is the "acquisition unit", | ||
Revision as of 02:14, 17 August 2014
The Tektronix 7704A is a modular oscilloscope in the 7000 series that takes two 7000-series vertical plug-ins and two 7000-series horizontal plug-ins.
The 7704A followed the 7704, improving bandwidth to 200 MHz (regular model, optimized for transient response) or 250 MHz (option 9, bandwidth-optimized).
The 7704A has a special modular construction. At the bottom is the "acquisition unit", which contains the power supply, plug-in slots, and main interface board. On top is the "display unit", which contains the CRT, HV power supply, and output amplifiers for driving the deflection plates of the CRT. These units detach. A large multi-pin connector passes signals and power from the acquisition unit to the display unit. It is important 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.
The 7704A SMPS uses a custom Tek chip to implement the control functions. Since the SMPS is a kind of oscillator, there is the issue of how it will start when it is first powered up. Early 7704As use a diac in the starter circuit. Later 7704As use a unijunction transistor in the starter circuit.
Specifications
Links
Pictures
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APD Interface
