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7704: Difference between revisions
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{{Oscilloscope Sidebar| | {{Oscilloscope Sidebar| | ||
title=Tektronix 7704| | title=Tektronix 7704| | ||
image= | image=7704-front.jpg | | ||
caption=Tek 7704 (non-A) CRT and controls | | caption=Tek 7704 (non-A) CRT and controls | | ||
introduced=1969 | | introduced=1969 | | ||
| Line 8: | Line 8: | ||
manuals= | manuals= | ||
* [http://bama.edebris.com/download/tek/7704/tek-7704.pdf Tektronix 7704 Manual (PDF)] | * [http://bama.edebris.com/download/tek/7704/tek-7704.pdf Tektronix 7704 Manual (PDF)] | ||
* [[Media:Tekscope 1971 V3 N2.pdf|Tekscope Vol. 3 No. 2, Mar 1971: Servicing the 7704 switch-mode power supply]] | |||
* [[Media:Tekscope_1971_V3_N3_May_1971.pdf|Tekscope Vol. 3 No. 3, May 1971: Servicing the 7704 CRT circuit]] | |||
}} | }} | ||
The '''Tektronix 7704''' is a 150 MHz, four-bay mainframe | The '''Tektronix 7704''' is a 150 MHz, four-bay mainframe | ||
[[introduced in 1969|introduced in August 1969]] that can take | [[introduced in 1969|introduced in August 1969]] that can take | ||
two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] | 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]]. The 7704 is one of the initial oscilloscopes introducing the [[Introduction_to_the_7000-Series|7000-Line]] and very lavishly build using contacts embedded in the aluminium frame for interconnecting the gold plated PCB boards. | ||
It was superseded by the [[7704A]] in 1973. | It was superseded by the completely redesigned [[7704A]] in 1973. | ||
There is also a rack-mount version, the '''R7704'''. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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{{Spec | Power | 90-136 V or 180-272 V, 48-440 Hz, 210 W max. }} | {{Spec | Power | 90-136 V or 180-272 V, 48-440 Hz, 210 W max. }} | ||
{{Spec | Weight | 19.1 kg (42 lbs) }} | {{Spec | Weight | 19.1 kg (42 lbs) }} | ||
{{Spec | Size | 34.2 cm × 30.5 cm × | {{Spec | Size | 34.2 cm × 30.5 cm × 55.1 cm (H×W×L) }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Internals== | ==Internals== | ||
The 7704 uses an all-discrete switch-mode power supply (SMPS) in resonant half-bridge topology. | The 7704 uses an all-discrete switch-mode power supply (SMPS) in resonant half-bridge topology. | ||
The CRT voltages and heating are produced in a separate switching stage running off the main SMPS DC output. | The CRT voltages and heating are produced in a separate switching stage running off the main SMPS DC output. | ||
Logic, channel switching, and [[7000_series_readout_system|readout]] use the classic TEK 7000 series custom ICs ([[155-0009-00]] to [[155-0022-00]]), the horizontal and vertical amplifiers are completely discrete. | |||
==Links== | ==Links== | ||
| Line 36: | Line 41: | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
7704-front.jpg | 7704 front | |||
Tek_7704_rear.jpg | 7704 rear | |||
Tek 7704 2.jpg | 7704 CRT and controls | |||
tek-r7704.jpg | R7704 | |||
Tek_7704_left.jpg | Left internal | |||
Tek 7704 right.jpg | Right internal | |||
7704_powersupply.jpg | Left side of 7704 contains power supply | |||
7704 right2.jpg | Right side of 7704 contains readout circuitry | |||
</gallery> | </gallery> | ||
[[Category:7000 series non-storage mainframes]] | [[Category:7000 series non-storage mainframes]] | ||