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The '''Tektronix 7504''' is a 90 MHz 7000-series mainframe, one of the initial oscilloscopes introducing the [[Introduction_to_the_7000-Series|7000-Line]] [[introduced in 1969|in 1969]]. | The '''Tektronix 7504''' is a 90 MHz 7000-series mainframe, one of the initial oscilloscopes introducing the [[Introduction_to_the_7000-Series|7000-Line]] [[introduced in 1969|in 1969]]. | ||
It is very lavishly built, using contacts embedded in the aluminium frame for interconnecting the gold plated circuit boards. It also features the [[7000-series remote control connector]] on the rear panel. | |||
It can take 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 was in production for about one year. | It can take 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 was in production for about one year. | ||
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{{Spec | Bandwidth | 90 MHz}} | {{Spec | Bandwidth | 90 MHz}} | ||
{{Spec | Fastest calibrated sweep | 5 ns/Div }} | {{Spec | Fastest calibrated sweep | 5 ns/Div }} | ||
{{Spec | Calibrator| DC | {{Spec | Calibrator | DC, square wave (1 kHz or 1/2 B Sweep gate), 4 mV to 40 V in decade steps (2/20/200/400 mV into 50 Ω); 40 mA current loop }} | ||
{{Spec | Vertical modes | Left / Alt / Add / Chop / Right }} | |||
{{Spec | Horizontal modes | A / Alt / Chop / B }} | |||
{{Spec | Trigger Source | Left / Vert Mode / Right }} | |||
{{Spec | Inputs | | |||
* Z Axis High Speed (60 V<sub>p-p</sub>, DC−75 MHz) | |||
* Z Axis High Sensitivity (2 V<sub>p-p</sub>, DC−2 MHz; 0.4 V<sub>p-p</sub> @ 10 MHz) | |||
}} | |||
{{Spec | Outputs | | |||
* Vertical Signal Out (25 mV/Div into 50 Ω, 0.5 V/Div into 1 MΩ) | |||
* +Sawtooth | |||
* +Gate | |||
* camera power | |||
* probe power | |||
}} | |||
{{Spec | CRT | 8x10 Div @ 1 cm/Div internal gradicule, [[154-0608-00]] with P31 [[phosphor]] 18 kV acceleration (+15/-2.96) }} | |||
{{Spec | Options | | {{Spec | Options | | ||
* Opt.01 – without readout | * Opt.01 – without readout | ||
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* Opt.03 – EMI shielding | * Opt.03 – EMI shielding | ||
}} | }} | ||
{{Spec | Power | {{Spec | Power | 90−136 V or 180−272 V, 48−440 Hz, 280 W max. }} | ||
{{Spec | Weight| 24.6 kg (54 lb) }} | {{Spec | Weight| 24.6 kg (54 lb) }} | ||
{{Spec | Size | | |||
: 34.2 cm × 30.5 cm × 55.1 cm (H×W×L) | |||
: (13.5 in x 12.0 in x 21.7 in) | |||
}} | |||
{{EndSpecs}} | {{EndSpecs}} | ||
==Internals== | ==Internals== | ||
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It is equipped with a [[7000-series remote control connector|rear remote control connector]] similar to the [[7904]] but lacking the remote readout features, and two [[probe power]] connectors. | It is equipped with a [[7000-series remote control connector|rear remote control connector]] similar to the [[7904]] but lacking the remote readout features, and two [[probe power]] connectors. | ||
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 vertical amplifier (also designed by Andrews) and the horizontal amplifier are completely discrete. | |||
The 7504 does not implement the [[7000 Series plug-in interface|Aux Y input (B16)]], therefore the Trace Separation control on a [[7B92]]/[[7B92A]] will have no effect. | |||
The 7504 contains a mercury-based [[elapsed time meter]] on the low voltage regulator board. | The 7504 contains a mercury-based [[elapsed time meter]] on the low voltage regulator board. | ||